CVE-2022-39325Network attack vector

Stored XSS via unescaped favorite URL

Published Nov 25, 2022 · Updated Apr 23, 2025

Stored cross-site scripting in baserCMS 4.7.1 and earlier allows remote authenticated users to execute JavaScript via a crafted favorite URL. The favorite-menu template places the stored URL in a link title attribute without HTML escaping, allowing attribute breakout when the menu renders. An authenticated management user must register the payload and another user must render the favorite menu; successful execution can alter the page or expose accessible cookies.

CVSS severity4.6
Medium
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in baserCMS 4.7.1 and earlier allows remote authenticated users to execute JavaScript via a crafted favorite URL. The favorite-menu template places the stored URL in a link title attribute without HTML escaping, allowing attribute breakout when the menu renders. An authenticated management user must register the payload and another user must render the favorite menu; successful execution can alter the page or expose accessible cookies.

The record

CVE
CVE-2022-39325
Published
Nov 25, 2022
Updated
Apr 23, 2025
Vendor
baserCMS Users Community
Product
baserCMS
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 25, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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=< 4.7.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

baserCMS Users Community · baserCMSversion=< 4.7.2

Published CVSS scores

4.6GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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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