6.1

CVE-2015-8622: mediawiki Cross-site Scripting

CVSS: 6.1v3.0MediumModified
AliasesUBUNTU-CVE-2015-8622DEBIAN-CVE-2015-8622
Published 23-03-2017Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2015-8622 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in mediawiki. EPSS estimates a 1.48% chance of exploitation in the next 30 days, higher than 73.6% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.0 (NVD)
EPSS score
1.48%
0%100%
Low · -0.39 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
MGASA-2015-0486

Timeline

  1. 23-03-2017
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

Cross-site scripting (XSS) vulnerability in MediaWiki before 1.23.12, 1.24.x before 1.24.5, 1.25.x before 1.25.4, and 1.26.x before 1.26.1, when is configured with a relative URL, allows remote authenticated users to inject arbitrary web script or HTML via wikitext, as demonstrated by a wikilink to a page named "javascript:alert('XSS!')."

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.48%

Chance of exploitation in the next 30 days

Percentile

74%

Versus all other CVEs

30-day change

-0.39 pp

From 1.87% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.48%

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

Affected systems

Debian1 product
  • mediawiki< 1:1.25.5-1
Mediawiki1 product
  • mediawiki≤ 1.23.11 | 1.24.0 | 1.24.1 | 1.24.2 | 1.24.3 | 1.24.4 | 1.25.0 | 1.25.1 | 1.25.2 | 1.25.3 | 1.26.0
Ubuntu1 product
  • mediawiki< 1:1.27.4-3

3 vendors · 3 products

References

7 links