CVE-2022-3573Public exploitNetwork attack vector

JavaScript execution via unfiltered wiki diff parameters

Published Jan 12, 2023 · Updated Apr 8, 2025

Cross-site scripting in the wiki changes page of GitLab CE/EE allows remote authenticated users to execute arbitrary JavaScript. The params_with_whitespace helper forwards unfiltered request query parameters to url_for, allowing protocol and host values to turn the whitespace-toggle link into a javascript URL. Exploitation requires a victim to click that link on a self-hosted instance without strict CSP; the script then runs in the victim's GitLab session.

CVSS severity5.4
Medium
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in the wiki changes page of GitLab CE/EE allows remote authenticated users to execute arbitrary JavaScript. The params_with_whitespace helper forwards unfiltered request query parameters to url_for, allowing protocol and host values to turn the whitespace-toggle link into a javascript URL. Exploitation requires a victim to click that link on a self-hosted instance without strict CSP; the script then runs in the victim's GitLab session.

The record

CVE
CVE-2022-3573
Published
Jan 12, 2023
Updated
Apr 8, 2025
Vendor
GitLab
Product
GitLab
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>=15.4, <15.5.7
  2. Affected versionversion=>=15.6, <15.6.4
  3. Affected versionversion=>=15.7, <15.7.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

GitLab · GitLabversion=>=15.4, <15.5.7; version=>=15.6, <15.6.4; version=>=15.7, <15.7.2

Published CVSS scores

5.4GitLabCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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