4.3

CVE-2015-2931: mediawiki Cross-site Scripting

CVSS: 4.3v2.0MediumModified
AliasesUBUNTU-CVE-2015-2931DEBIAN-CVE-2015-2931
Published 13-04-2015Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2015-2931 is a medium (CVSS 4.3) Cross-site Scripting vulnerability in mediawiki. EPSS estimates a 2.20% chance of exploitation in the next 30 days, higher than 82.2% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v2.0 (NVD)
EPSS score
2.20%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 1
MGASA-2015-0142

Timeline

  1. 13-04-2015
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

Incomplete blacklist vulnerability in includes/upload/UploadBase.php in MediaWiki before 1.19.24, 1.2x before 1.23.9, and 1.24.x before 1.24.2 allows remote attackers to inject arbitrary web script or HTML via an application/xml MIME type for a nested SVG with a data: URI.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

2.20%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

0.00 pp

From 2.20% on 20-09-2026

20-09-202620-10-2026
EPSS score
2.20%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (phabricator.wikimedia.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • mediawiki< 1:1.19.20+dfsg-2.3
Mediawiki1 product
  • mediawiki≤ 1.19.23 | 1.20 | 1.20.1 | 1.20.2 | 1.20.3 | 1.20.4 | 1.20.5 | 1.20.6 | 1.20.7 | 1.20.8 | 1.21 | 1.21.1 | 1.21.2 | 1.21.3 | 1.21.4 | 1.21.5 | 1.21.6 | 1.21.7 | 1.21.8 | 1.21.9 | 1.21.10 | 1.21.11 | 1.22.0 | 1.22.1 | 1.22.2 | 1.22.3 | 1.22.4 | 1.22.5 | 1.22.6 | 1.22.7 | 1.22.8 | 1.22.9 | 1.22.10 | 1.22.11 | 1.22.12 | 1.22.13 | 1.22.14 | 1.22.15 | 1.23.0 | 1.23.1 | 1.23.2 | 1.23.3 | 1.23.4 | 1.23.5 | 1.23.6 | 1.23.7 | 1.23.8 | 1.24.0 | 1.24.1
Ubuntu1 product
  • mediawiki< 1:1.27.4-3

3 vendors · 3 products

References

10 links