How severe is CVE-2022-34777?

CVE-2022-34777 has a CVSS score of 5.4/10, rated MEDIUM. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2022-34777?

CVE-2022-34777 affects the following packages: org.jenkins-ci.plugins:gitlab-plugin (Maven). Ecosystems affected: Maven.

How do I fix CVE-2022-34777?

Update org.jenkins-ci.plugins:gitlab-plugin to 1.5.35 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-34777 is resolved across your whole dependency graph.

How do I detect CVE-2022-34777 in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jenkins-ci.plugins:gitlab-plugin, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2022-34777 if there is no patch (or I can't update yet)?

Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Is CVE-2022-34777 actively exploited in the wild?

No public exploit code has been indexed for CVE-2022-34777 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2022-34777?

CVE-2022-34777 has an EPSS (Exploit Prediction Scoring System) score of 73.6%, placing it in the 99th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

What type of vulnerability is CVE-2022-34777?

CVE-2022-34777 is classified as Cross-site Scripting (XSS) (CWE-79). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was CVE-2022-34777 published, and has it been updated?

CVE-2022-34777 was published on June 30, 2022 and was last updated on October 24, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕

☕ Maven

Not in CISA KEV

MEDIUM severity

CVE-2022-34777 — gitlab-plugin

MEDIUMFix: jenkinsci/gitlab-plugin@24e9a99

CVE-2022-34777 is a medium-severity (CVSS 5.4) Cross-site Scripting (XSS) vulnerability in org.jenkins-ci.plugins:gitlab-plugin. EPSS puts its 30-day exploitation probability at 73.6% (99th percentile). A fix is available for org.jenkins-ci.plugins:gitlab-plugin — see the affected versions and patch details below.

Cross-site Scripting in Jenkins GitLab Plugin

Also known asGHSA-f655-xhvm-cwp4

Published

Jun 30, 2022

Updated

Oct 24, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 9, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

73.6%probability of exploitation in next 30 days

Very High Risk0.00%

Lower risk than most CVEs99th percentile — riskier than 99% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

☕org.jenkins-ci.plugins:gitlab-plugin

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

Jenkins GitLab Plugin 1.5.34 and earlier does not escape multiple fields inserted into the description of webhook-triggered builds, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission. GitLab Plugin 1.5.35 does not show user-provided fields in the build cause of webhook-triggered builds.

GitLab Plugin 1.5.35 does not show user-provided fields in the build cause of webhook-triggered builds.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.jenkins-ci.plugins:gitlab-plugin`	all versions	1.5.35`org.jenkins-ci.plugins:gitlab-plugin:1.5.35`

Affected Products

1 product · 1 configurations

Application

gitlabjenkins

≤ 1.5.34

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.jenkins-ci.plugins:gitlab-plugin, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.jenkins-ci.plugins:gitlab-plugin to 1.5.35 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-34777 is resolved across your whole dependency graph.
Workarounds
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2022-34777 in your dependencies?

Find it across Maven, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

5.4/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Raw vector

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

CWE Classification

CWE-79Cross-site Scripting (XSS)

Weaponization

No Nuclei template, Metasploit module or public proof-of-concept found.

OpenSSF Scorecard

Package health score

gitlab-plugin

6.2/10

Code-Review4/10

Maintained10/10

Branch-ProtectionN/A

Assessed Oct 26, 2026

Timeline

Disclosed

Jun 30, 2022

Last updated

Oct 24, 2026

Identifiers

CVE-2022-34777

GHSA-f655-xhvm-cwp4

References

Advisoryjenkins.io · 2022 06 30 Advisorynvd.nist.gov · CVE 2022 34777 Webgithub.com · 24e9a99d8151b5345109ef12cddc1ab323baa4ee Packagegithub.com · gitlab plugin

Related vulnerabilities

Also affects gitlab-plugin

This CVE is medium severity; 4 of 5 other CVEs affecting gitlab-plugin are rated as high or higher (top: high).

CVE-2025-24397CVE-2022-43411CVE-2019-10301CVE-2019-10300CVE-2022-30955

Same weakness: CWE-79

This CVE is medium severity; 2 of 3 other CVEs with CWE-79 are rated as high or higher (top: moderate).

CVE-2026-126075CVE-2026-126063CVE-2026-110802Browse all CWE-79

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedOct 24, 2026