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Fencer Intel
medium 5.4

CVE-2019-5467 json

An input validation and output encoding issue was discovered in the GitLab CE/EE wiki pages feature which could result in a persistent XSS.

published 7y ago modified 4mo ago also EUVD-2019-15049

cvss
5.4
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits
0
none known

Summary

An input validation and output encoding issue was discovered in the GitLab CE/EE wiki pages feature which could result in a persistent XSS. This vulnerability was addressed in 12.1.2, 12.0.4, and 11.11.6.

Patch / fix

  • gitlab gitlab 11.11.7, 12.0.4, 12.1.2

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Exploit prediction

0.74% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • hackerone.com https://hackerone.com/reports/526325 referenced PoC, tagged "exploit" by a source, unverified
  • gitlab.com https://gitlab.com/gitlab-org/gitlab-ce/issues/60143 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N

Affected products

  • n/a GitLab CE/EE

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.