8.8

CVE-2021-41801: mediawiki

CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2021-41801DEBIAN-CVE-2021-41801
Published 11-10-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-41801 is a high (CVSS 8.8) vulnerability in mediawiki. EPSS estimates a 1.16% chance of exploitation in the next 30 days, higher than 66.6% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
1.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2
DSA-4979-1MGASA-2021-0477

Timeline

  1. 11-10-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

The ReplaceText extension through 1.41 for MediaWiki has Incorrect Access Control. When a user is blocked after submitting a replace job, the job is still run, even if it may be run at a later time (due to the job queue backlog)

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.16%

Chance of exploitation in the next 30 days

Percentile

67%

Versus all other CVEs

30-day change

0.00 pp

From 1.16% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Debian1 product
  • mediawiki< 1:1.35.4-1
Mediawiki1 product
  • mediawiki< 1.31.16 | ≥ 1.35.0, < 1.35.4 | ≥ 1.36.0, < 1.36.2
Ubuntu1 product
  • mediawikiAll versions (No fix recorded)

3 vendors · 3 products

References

6 links