Debian dsa-6208 : mediawiki - security update

high Nessus Plugin ID 307633

Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 12 / 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6208 advisory.

- ------------------------------------------------------------------------- Debian Security Advisory DSA-6208-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff April 12, 2026 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : mediawiki CVE ID : CVE-2026-34086 CVE-2026-34087 CVE-2026-34088 CVE-2026-34091 CVE-2026-34092 CVE-2026-34093 CVE-2026-34094 CVE-2026-34095 CVE-2026-5266

Multiple security issues were discovered in MediaWiki, a website engine for collaborative work, which could result in information disclosure or incomplete permission checks.

For the oldstable distribution (bookworm), these problems have been fixed in version 1:1.39.17-1+deb12u2.

For the stable distribution (trixie), these problems have been fixed in version 1:1.43.8+dfsg-1~deb13u1.

We recommend that you upgrade your mediawiki packages.

For the detailed security status of mediawiki please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/mediawiki

Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

Mailing list: [email protected]

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the mediawiki packages.

Plugin Details

Severity: High

ID: 307633

File Name: debian_DSA-6208.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Debian Local Security Checks

Published: 4/20/2026

Updated: 4/20/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2026-5266

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:12.0, p-cpe:/a:debian:debian_linux:mediawiki-classes, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:debian:debian_linux:mediawiki

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 4/12/2026

Vulnerability Publication Date: 4/12/2026

Reference Information

CVE: CVE-2026-34086, CVE-2026-34087, CVE-2026-34088, CVE-2026-34091, CVE-2026-34092, CVE-2026-34093, CVE-2026-34094, CVE-2026-34095, CVE-2026-5266

Detections

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