postgresql: PostgreSQL: Arbitrary code execution via type confusion in cursor lifecycle

A flaw was found in PostgreSQL. This vulnerability, caused by type confusion in the 'portal'/cursor lifecycle, allows a user to execute arbitrary code as the operating system user running the database. This can occur by re-creating a cursor or other portal with different types. Successful...

CVE-2026-77616

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. In versions 7.0.0 through 7.1.0, Special:Ask accepts a cursor query parameter for keyset pagination added in 7.0.0. The token is decoded by CursorEncoder, which is an...

GHSA-CX86-7XWP-W9WF Semantic MediaWiki affected by reflected XSS in `Special:Ask` via a forged cursor pagination token

Reflected XSS via a forged cursor pagination token Failure mode Special:Ask accepts a cursor query parameter for keyset pagination added in 7.0.0. The token is decoded by CursorEncoder, which is an unsigned base64url-encoded JSON blob, so its contents are fully attacker-controlled. When the...

Semantic MediaWiki affected by reflected XSS in `Special:Ask` via a forged cursor pagination token

Reflected XSS via a forged cursor pagination token Failure mode Special:Ask accepts a cursor query parameter for keyset pagination added in 7.0.0. The token is decoded by CursorEncoder, which is an unsigned base64url-encoded JSON blob, so its contents are fully attacker-controlled. When the...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS in the Special:Ask process when a forged cursor pagination token is supplied. An attacker can execute arbitrary scripts in the victim's browser by crafting a malicious link containing a specially crafted cursor...

EUVD-2026-83189

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. In versions 7.0.0 through 7.1.0, Special:Ask accepts a cursor query parameter for keyset pagination added in 7.0.0. The token is decoded by CursorEncoder, which is an...

CVE-2026-77616 Semantic MediaWiki affected by reflected XSS in `Special:Ask` via a forged cursor pagination token

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. In versions 7.0.0 through 7.1.0, Special:Ask accepts a cursor query parameter for keyset pagination added in 7.0.0. The token is decoded by CursorEncoder, which is an...

CVE-2026-77616 Semantic MediaWiki affected by reflected XSS in `Special:Ask` via a forged cursor pagination token

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. In versions 7.0.0 through 7.1.0, Special:Ask accepts a cursor query parameter for keyset pagination added in 7.0.0. The token is decoded by CursorEncoder, which is an...

CVE-2026-77616

Semantic MediaWiki versions 7.0.0–7.1.0 are affected by a reflected XSS in the Special:Ask page. The cursor query parameter (introduced for keyset pagination in 7.0.0) is an unsigned base64url-encoded JSON blob, making its contents fully attacker-controlled. When the cursor's sort anchor mismatch...

CVE-2026-77616 Semantic MediaWiki affected by reflected XSS in `Special:Ask` via a forged cursor pagination token

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. In versions 7.0.0 through 7.1.0, Special:Ask accepts a cursor query parameter for keyset pagination added in 7.0.0. The token is decoded by CursorEncoder, which is an...

CVE-2026-77616: Improper Neutralization of Input During Web Page Generation

Semantic MediaWiki is a free, open-source extension to MediaWiki that lets users store and query data within the wiki's pages. In versions 7.0.0 through 7.1.0, Special:Ask accepts a cursor query parameter for keyset pagination added in 7.0.0. The token is decoded by CursorEncoder, which is an...

PT-2026-95518

Name of the Vulnerable Software and Affected Versions Semantic MediaWiki versions 7.0.0 through 7.1.0 Description A reflected cross-site scripting issue exists in the Special:Ask endpoint. The application accepts a cursor query parameter for keyset pagination, which is decoded by CursorEncoder as...

BIT-MONGODB-2026-82063 Use-After-Free in MongoDB Server Cursor Management Component Leads to Denial of Service

A use-after-free security issue in the cursor management component of MongoDB Server allows an authenticated user to cause a denial of service. Under specific timing conditions during cursor operations, a stale pointer to a freed resource may be retained and subsequently dereferenced during curso...

postgresql: PostgreSQL: Arbitrary code execution via type confusion in cursor lifecycle

A flaw was found in PostgreSQL. This vulnerability, caused by type confusion in the 'portal'/cursor lifecycle, allows a user to execute arbitrary code as the operating system user running the database. This can occur by re-creating a cursor or other portal with different types. Successful...

Astra Linux – Vulnerability in Firefox and Thunderbird

If a custom mouse cursor is specified in CSS, under certain circumstances the cursor might be drawn over the browser UI, potentially causing confusion for users or leading to spoofing attacks. This vulnerability affects Firefox ESR 102.5, Thunderbird 102.5, and Firefox 107...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: dmarraycursorend: Fix to prevent releasing a faulty array block twice when using dmarraycursorend. When dmbmreadlock fails due to locking or checksum errors, it releases the faulty block implicitly, leaving an invalid output...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Validated the box size for the snooped cursor. Invalid user-space DMA surface copies could potentially cause an overflow when copying data from the surface to the snooped image, leading to crashes. To address this...

Astra Linux – Vulnerability in Qemu

A flaw was discovered in the QXL display device emulation in QEMU. An integer overflow in the cursoralloc function can lead to the allocation of a small cursor object, followed by a subsequent heap-based buffer overflow. This flaw allows a malicious privileged guest user to crash the QEMU process...

Astra Linux – Vulnerability in Qemu

A flaw was discovered in the QXL display device emulation in QEMU. The double retrieval of the guest-controlled values cursor-header.width and cursor-header.height can lead to the allocation of a small cursor object, followed by a subsequent heap-based buffer overflow. A malicious privileged gues...

Astra Linux – Vulnerability in Firefox and Thunderbird

If a website sets a large custom cursor, portions of the cursor may overlap with the permission dialog, potentially causing confusion for users and leading to unexpected granting of permissions. This vulnerability affects Firefox 123, Firefox ESR 115.8, and Thunderbird 115.8...