CVE-2023-24814Network attack vector

Persisted cross-site scripting via unfiltered PATH_INFO

Published Feb 7, 2023 · Updated Mar 10, 2025

Cross-site scripting in TYPO3 CMS frontend rendering allows remote attackers to persist malicious HTML through crafted PATH_INFO requests. GeneralUtility::getIndpEnv() treats the unfiltered PATH_INFO server variable as SCRIPT_NAME, and derived values enter URI and HTML contexts without encoding. The prominent path requires config.absRefPrefix=auto, an uncached page, PHP-CGI, and a later visitor, whose browser executes the cached payload.

CVSS severity8.8
High
EPSS probability0.83%
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 TYPO3 CMS frontend rendering allows remote attackers to persist malicious HTML through crafted PATH_INFO requests. GeneralUtility::getIndpEnv() treats the unfiltered PATH_INFO server variable as SCRIPT_NAME, and derived values enter URI and HTML contexts without encoding. The prominent path requires config.absRefPrefix=auto, an uncached page, PHP-CGI, and a later visitor, whose browser executes the cached payload.

The record

CVE
CVE-2023-24814
Published
Feb 7, 2023
Updated
Mar 10, 2025
Vendor
in2code GmbH
Product
TYPO3 CMS
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 7, 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

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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=>= 10.0.0, < 10.4.36
  2. Affected versionversion=11.0.0, < 11.5.23
  3. Affected versionversion=>= 12.0.0, < 12.2.0
  4. Affected versionversion=>= 8.7.0, < 8.7.51
  5. Affected versionversion=>= 9.0.0, < 9.5.40

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

in2code GmbH · TYPO3 CMSversion=>= 10.0.0, < 10.4.36; version=11.0.0, < 11.5.23; version=>= 12.0.0, < 12.2.0; version=>= 8.7.0, < 8.7.51; version=>= 9.0.0, < 9.5.40

Published CVSS scores

8.2TYPO3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L/E:F/RL:O/RC:C
8.8GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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

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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