Vulnerability · Published Dec 26, 2022 · Assigned by mitre
CVE-2021-44855
Medium 5.4
In plain English
A medium-severity cross-site scripting in the mediawiki package (Debian). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.6%top 51.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. There is Blind Stored XSS via a URL to the Upload Image feature.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | mediawiki | 1:1.35.5-1 | DEBIAN-CVE-2021-44855 |
| Debian:13 | mediawiki | 1:1.35.5-1 | DEBIAN-CVE-2021-44855 |
| Debian:14 | mediawiki | 1:1.35.5-1 | DEBIAN-CVE-2021-44855 |
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N