CVE•Published 2025-12-11•Modified 2026-10-14•1 article on news•6 live references•NVD data

CVE-2025-12029Gitlab · Gitlab

Vulnerability data via NVD (ingested)

CVSS v3.1

8.0

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

EPSS percentile

Exploit Prediction Scoring System · top 57% of all CVEs

Weaknesses (CWE)

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.11 before 18.4.6, 18.5 before 18.5.4, and 18.6 before 18.6.2 that could have, under certain circumstances, allowed an unauthenticated user to perform unauthorized actions on behalf of another user by injecting malicious external scripts into the Swagger UI."

Timeline

Published 2025-12-11

Modified 2026-10-14

External references

NVD MITRE Exploit-DB GitHub PoC trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2025-12029

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Gitlab Gitlab"

All exposed Gitlab Gitlab instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Gitlab"

HTTP body or banner mentions "Gitlab" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2025-12029