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Search Results (344873 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2026-34213 1 Docmost 1 Docmost 2026-04-15 5.4 Medium
Docmost is open-source collaborative wiki and documentation software. Starting in version 0.3.0 and prior to version 0.71.0, improper authorization in Docmost allows a low-privileged authenticated user to overwrite another page's attachment within the same workspace by supplying a victim `attachmentId` to `POST /api/files/upload`. This is a remote integrity issue requiring no victim interaction. Version 0.71.0 contains a patch.
CVE-2026-33020 1 Saitoha 1 Libsixel 2026-04-15 7.1 High
libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. Versions 1.8.7 and prior contain an integer overflow which leads to a heap buffer overflow via sixel_frame_convert_to_rgb888() in frame.c, where allocation size and pointer offset computations for palettised images (PAL1, PAL2, PAL4) are performed using int arithmetic before casting to size_t. For images whose pixel count exceeds INT_MAX / 4, the overflow produces an undersized heap allocation for the conversion buffer and a negative pointer offset for the normalization sub-buffer, after which sixel_helper_normalize_pixelformat() writes the full image data starting from the invalid pointer, causing massive heap corruption confirmed by ASAN. An attacker providing a specially crafted large palettised PNG can corrupt the heap of the victim process, resulting in a reliable crash and potential arbitrary code execution. This issue has been fixed in version 1.8.7-r1.
CVE-2026-33021 1 Saitoha 1 Libsixel 2026-04-15 7.3 High
libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. Versions 1.8.7 and prior contain a use-after-free vulnerability in sixel_encoder_encode_bytes() because sixel_frame_init() stores the caller-owned pixel buffer pointer directly in frame->pixels without making a defensive copy. When a resize operation is triggered, sixel_frame_convert_to_rgb888() unconditionally frees this caller-owned buffer and replaces it with a new internal allocation, leaving the caller with a dangling pointer. Any subsequent access to the original buffer by the caller constitutes a use-after-free, confirmed by AddressSanitizer. An attacker who controls incoming frames can trigger this bug repeatedly and predictably, resulting in a reliable crash with potential for code execution. This issue has been fixed in version 1.8.7-r1.
CVE-2026-34454 1 Oauth2 Proxy Project 1 Oauth2 Proxy 2026-04-15 3.5 Low
OAuth2 Proxy is a reverse proxy that provides authentication using OAuth2 providers. A regression introduced in 7.11.0 prevents OAuth2 Proxy from clearing the session cookie when rendering the sign-in page. In deployments that rely on the sign-in page as part of their logout flow, a user may be shown the sign-in page while the existing session cookie remains valid, meaning the browser session is not actually logged out. On shared workstations or devices, a subsequent user could continue to use the previous user's authenticated session. Deployments that use a dedicated logout/sign-out endpoint to terminate sessions are not affected. This issue is fixed in 7.15.2
CVE-2026-35031 1 Jellyfin 1 Jellyfin 2026-04-15 10 Critical
Jellyfin is an open source self hosted media server. Versions prior to 10.11.7 contain a vulnerability chain in the subtitle upload endpoint (POST /Videos/{itemId}/Subtitles), where the Format field is not validated, allowing path traversal via the file extension and enabling arbitrary file write. This arbitrary file write can be chained into arbitrary file read via .strm files, database extraction, admin privilege escalation, and ultimately remote code execution as root via ld.so.preload. Exploitation requires an administrator account or a user that has been explicitly granted the "Upload Subtitles" permission. This issue has been fixed in version 10.11.7. If users are unable to upgrade immediately, they can grant non-administrator users Subtitle upload permissions to reduce attack surface.
CVE-2026-35033 1 Jellyfin 1 Jellyfin 2026-04-15 N/A
Jellyfin is an open source self hosted media server. Versions prior to 10.11.7 contain an unauthenticated arbitrary file read vulnerability via ffmpeg argument injection through the StreamOptions query parameter parsing mechanism. The ParseStreamOptions method in StreamingHelpers.cs adds any lowercase query parameter to a dictionary without validation, bypassing the RegularExpression attribute on the level controller parameter, and the unsanitized value is concatenated directly into the ffmpeg command line. By injecting a drawtext filter with a textfile argument, an attacker can read arbitrary server files such as /etc/shadow and exfiltrate their contents as text rendered in the video stream response. The vulnerable /Videos/{itemId}/stream endpoint has no Authorize attribute, making this exploitable without authentication, though item GUIDs are pseudorandom and require an authenticated user to obtain. This issue has been fixed in version 10.11.7.
CVE-2026-33414 2026-04-15 N/A
Podman is a tool for managing OCI containers and pods. Versions 4.8.0 through 5.8.1 contain a command injection vulnerability in the HyperV machine backend in pkg/machine/hyperv/stubber.go, where the VM image path is inserted into a PowerShell double-quoted string without sanitization, allowing $() subexpression injection. Because PowerShell evaluates subexpressions inside double-quoted strings before executing the outer command, an attacker who can control the VM image path through a crafted machine name or image directory can execute arbitrary PowerShell commands with the privileges of the Podman process. On typical Windows installations this means SYSTEM-level code execution, and only Windows is affected as the code is exclusive to the HyperV backend. This issue has been patched in version 5.8.2.
CVE-2026-39387 1 Boidcms 1 Boidcms 2026-04-15 7.2 High
BoidCMS is an open-source, PHP-based flat-file CMS for building simple websites and blogs, using JSON as its database. Versions prior to 2.1.3 are vulnerable to a critical Local File Inclusion (LFI) attack via the tpl parameter, which can lead to Remote Code Execution (RCE).The application fails to sanitize the tpl (template) parameter during page creation and updates. This parameter is passed directly to a require_once() statement without path validation. An authenticated administrator can exploit this by injecting path traversal sequences (../) into the tpl value to escape the intended theme directory and include arbitrary files — specifically, files from the server's media/ directory. When combined with the file upload functionality, this becomes a full RCE chain: an attacker can first upload a file with embedded PHP code (e.g., disguised as image data), then use the path traversal vulnerability to include that file via require_once(), executing the embedded code with web server privileges. This issue has been fixed in version 2.1.3.
CVE-2026-22692 1 Octobercms 1 October 2026-04-15 4.9 Medium
October is a Content Management System (CMS) and web platform. Versions prior to 3.7.13 and versions 4.0.0 through 4.1.4 contain a sandbox bypass vulnerability in the optional Twig safe mode feature (CMS_SAFE_MODE). Certain methods on the collect() helper were not properly restricted, allowing authenticated users with template editing permissions to bypass sandbox protections. Exploitation requires authenticated backend access with CMS template editing permissions and only affects installations with CMS_SAFE_MODE enabled (disabled by default). This issue has been fixed in versions 3.7.13 and 4.1.5. To workaround this issue, users can disable CMS_SAFE_MODE if untrusted template editing is not required, and restrict CMS template editing permissions to fully trusted administrators only.
CVE-2026-23653 1 Microsoft 1 Visual Studio Code Copilot Chat Extension 2026-04-15 5.7 Medium
Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio Code allows an authorized attacker to disclose information over a network.
CVE-2026-20945 1 Microsoft 5 Sharepoint Enterprise Server 2016, Sharepoint Server, Sharepoint Server 2016 and 2 more 2026-04-15 4.6 Medium
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allows an authorized attacker to perform spoofing over a network.
CVE-2026-26149 1 Microsoft 1 Power-apps 2026-04-15 9 Critical
Improper neutralization of escape, meta, or control sequences in Microsoft Power Apps allows an authorized attacker to bypass a security feature over a network.
CVE-2026-26154 1 Microsoft 14 Windows Server 2012, Windows Server 2012 (server Core Installation), Windows Server 2012 R2 and 11 more 2026-04-15 7.5 High
Improper input validation in Windows Server Update Service allows an unauthorized attacker to perform tampering over a network.
CVE-2026-26183 1 Microsoft 14 Windows Server 2012, Windows Server 2012 (server Core Installation), Windows Server 2012 R2 and 11 more 2026-04-15 7.8 High
Improper access control in Windows RPC API allows an authorized attacker to elevate privileges locally.
CVE-2026-32167 1 Microsoft 10 Microsoft Sql Server 2016 Service Pack 3 Azure Connect Feature Pack, Microsoft Sql Server 2017 (gdr), Microsoft Sql Server 2019 (gdr) and 7 more 2026-04-15 6.7 Medium
Improper neutralization of special elements used in an sql command ('sql injection') in SQL Server allows an authorized attacker to elevate privileges locally.
CVE-2026-32168 1 Microsoft 2 Azure Monitor, Azure Monitor Agent 2026-04-15 7.8 High
Improper input validation in Azure Monitor Agent allows an authorized attacker to elevate privileges locally.
CVE-2026-32188 1 Microsoft 8 365 Apps, Excel 2016, Office 2019 and 5 more 2026-04-15 7.1 High
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-32192 1 Microsoft 2 Azure Monitor, Azure Monitor Agent 2026-04-15 7.8 High
Deserialization of untrusted data in Azure Monitor Agent allows an authorized attacker to elevate privileges locally.
CVE-2026-33095 1 Microsoft 5 365 Apps, Office 2021, Office 2024 and 2 more 2026-04-15 7.8 High
Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-33120 1 Microsoft 1 Sql Server 2022 2026-04-15 8.8 High
Untrusted pointer dereference in SQL Server allows an authorized attacker to execute code over a network.