Medium

Cross-site Scripting in GitLab EE customizable analytics dashboards

IdentifiersCVE-2026-4332CWE-79· Improper Neutralization of Input…

CVE-2026-4332 is a medium-severity cross-site scripting vulnerability in GitLab Enterprise Edition (EE) affecting customizable analytics dashboards. According to the provided content, the issue affects all versions from 18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3. The flaw is caused by improper input sanitization in dashboard customization functionality, which could allow an authenticated user to inject arbitrary JavaScript that is later executed in the browser context of other users viewing the affected analytics dashboards.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows arbitrary JavaScript execution in the browsers of other GitLab users who view the malicious analytics dashboard content. This can enable session hijacking, unauthorized actions in the victim's session, theft of sensitive data accessible to the victim in the application context, UI redressing, and further client-side compromise within GitLab. The provided content characterizes the issue as medium severity with CVSS 5.4.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce exposure by restricting access to customizable analytics dashboards to trusted users only and monitoring for suspicious dashboard content or unexpected script execution. Because the issue requires authenticated access and relies on malicious dashboard input being rendered by other users, limiting who can create or modify such dashboards may reduce risk. However, the definitive mitigation is to apply the vendor patch.

Remediation

Patch, then assume compromise.

Upgrade GitLab EE to a fixed release. The provided content states that GitLab remediated this issue in versions 18.8.9, 18.9.5, and 18.10.3. Self-managed deployments running affected versions should upgrade immediately to the appropriate patched version or later.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

GitLabGitlabapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

5 SOURCESView more in app

thecyberexpress com vulnerabilitiesNews

Apr 10, 2026

GitLab Security Update Fixes CVE-2026-5173 Flaw

A cross-site scripting vulnerability in GitLab analytics dashboards.

cyber security newsNews

Apr 9, 2026

GitLab Patches Multiple Vulnerabilities That Enables DoS and Code Injection Attacks

A medium-severity GitLab vulnerability in analytics dashboards that could allow execution of malicious JavaScript in other users' browsers.

gitlab releasesNews

Apr 8, 2026

GitLab Patch Release: 18.10.3, 18.9.5, 18.8.9 | GitLab

A cross-site scripting vulnerability in GitLab EE customizable analytics dashboards that could allow an authenticated user to execute arbitrary JavaScript in other users' browsers.

docs gitlabNews

Oct 1, 2018

GitLab Patch Release: 18.10.3, 18.9.5, 18.8.9 | GitLab Docs

A cross-site scripting vulnerability in GitLab EE analytics dashboards that could allow arbitrary JavaScript execution in other users' browsers.

What this page doesn’t show

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity1

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES

MITRE CVE

cve.org · CVE-2026-4332

NVD

nvd.nist.gov/vuln/detail/CVE-2026-4332

MITRE CWE · CWE-79

Improper Neutralization of Input During Web…

Vendor Advisory

about.gitlab.com/releases/2026/04/08/patch-release-gitlab-18-10-3-released

Permissions Required

hackerone.com/reports/3600345