CVE-2020-12276 json
GitLab 9.5.9 through 12.9 is vulnerable to stored XSS in an admin notification feature.
published 2020-04-29 6 y ago modified 2026-09-08 2 mo ago also BIT-gitlab-2020-12276 , EUVD-2020-4589
- cvss
- 4.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 46%
- public exploits
- 0
- none known
Summary
GitLab 9.5.9 through 12.9 is vulnerable to stored XSS in an admin notification feature.
Patch / fix
- bitnami gitlab 12.7.8, 12.8.8, 12.9.1
- gitlab gitlab 12.7.8, 12.8.8, 12.9.1
Exploit prediction
0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/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 |
| OSV | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | gitlab | >=9.5.9, <12.7.8 >=12.8.0, <12.8.8 >=12.9.0, <12.9.1 |
12.7.8 12.8.8 12.9.1 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
about.gitlab.com
/releases/2020/03/26/security-release-12-dot-9-dot-1-released/
vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-12276
web
Sources
- CVE List CVE-2020-12276
- NVD CVE-2020-12276
- OSV BIT-gitlab-2020-12276
Fencer Vulns 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.