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Vulnerabilities

Vulnerability · CVE-2026-0670

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki - ProofreadPage Extension a…

Published Jan 7, 2026 · catalog updated Oct 26, 2026 · proofread page

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-0670. EPSS is 0.19%. Act only if a listed version of proofread page is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.19%
Remediation
Advisory link
Affected products
cpe wikisource/proofread page

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki - ProofreadPage Extension allows Cross-Site Scripting (XSS).This issue affects MediaWiki - ProofreadPage Extension: 1.45, 1.44, 1.43, 1.39.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe wikisource/proofread page1.39
  • cpe wikisource/proofread page1.43
  • cpe wikisource/proofread page1.44
  • cpe wikisource/proofread page1.45

How to fix CVE-2026-0670

  • No stored fix

    No vendor fix text is stored. Use the linked advisory before you change production.

  • Version check

    Seen in 1.39 · 3 other packages on the advisory

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-0670. EPSS is 0.19%. Act only if a listed version of proofread page is installed.

Which versions are affected?

Compare what you have installed with wikisource/proofread page 1.39; wikisource/proofread page 1.43; wikisource/proofread page 1.44; wikisource/proofread page 1.45. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-79: Cross-site Scripting (XSS). EPSS 0.19%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 7, 2026 · NIST NVD

    Detected

    Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki - ProofreadPage Extension allows Cross-Site Scripting (XSS).This issue affects MediaWiki - ProofreadPage Extension: 1.45, 1.44, 1.43, 1.39.

  2. Oct 26, 2026 · NIST NVD

    Updated

    Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki - ProofreadPage Extension allows Cross-Site Scripting (XSS).This issue affects MediaWiki - ProofreadPage Extension: 1.45, 1.44, 1.43, 1.39.

Sources

  • CVE.orgVulnerability recordCVE-2026-0670

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-0670

    Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki - ProofreadPage Extension allows Cross-Site Scripting (XSS).This issue affects MediaWiki - ProofreadPage Extension: 1.45, 1.44, 1.43, 1.39.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 27, 2026
  • NIST NVDOct 27, 2026