CVE-2023-22464Public exploitNetwork attack vector

Stored XSS via unescaped copyfrom path

Published Jan 4, 2023 · Updated Mar 10, 2025

Stored XSS in ViewVC before 1.1.30 and 1.2.0 through 1.2.2 allows remote authenticated users to execute script via an SVN filename. The view_revision code assigns an unescaped joined base path to change.copy_path, which the revision template renders as a changed path's copy-from location. Exploitation requires commit privileges to an exposed Subversion repository, a deliberately unsafe filename, and a user viewing the affected revision; successful execution runs attacker-controlled script in that user's browser.

CVSS severity5.4
Medium
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in ViewVC before 1.1.30 and 1.2.0 through 1.2.2 allows remote authenticated users to execute script via an SVN filename. The view_revision code assigns an unescaped joined base path to change.copy_path, which the revision template renders as a changed path's copy-from location. Exploitation requires commit privileges to an exposed Subversion repository, a deliberately unsafe filename, and a user viewing the affected revision; successful execution runs attacker-controlled script in that user's browser.

The record

CVE
CVE-2023-22464
Published
Jan 4, 2023
Updated
Mar 10, 2025
Vendor
ViewVC
Product
ViewVC
Classifications
CWE-79, CWE-80, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=< 1.1.30
  2. Affected versionversion=>= 1.2.0, < 1.2.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ViewVC · ViewVCversion=< 1.1.30; version=>= 1.2.0, < 1.2.3

Published CVSS scores

5.4Canonical UbuntuCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4GitHub, Inc.CVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
T1203Exploitation for Client Execution

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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