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01 Record

CVE-2026-3093

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

MediumPUBLISHEDCNA: GitLab
CNA base score4.7 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

02 Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.28% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 20.9% of scored records. A rank, not a probability.
NVD base score
4.7 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD analysis status
Analyzed. NVD last modified this record on 2026-08-03.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-07-29 19:02Z3 MO AGO
Last updated
2026-07-29 19:34Z3 MO AGO
Reserved
2026-02-24
Assigning CNA
GitLab
Record state
PUBLISHED
Severity
Medium (CVSS 4.7)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
Weaknesses
  • CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
Data version
5.2
Document digest
1cd84b1c59cc1407348f7aa9eb587d8f5aadfe52befff5d4fce68ff634e181ea

05 Affected products

VendorProductVersionsPlatforms
GitLabGitLab14.0 to < 19.0.5, 19.1 to < 19.1.3, 19.2 to < 19.2.1—

06 References

07 Remediation

Upgrade to versions 19.0.5, 19.1.3, 19.2.1 or above.