CVE-2023-34408Public exploitNetwork attack vector

Stored script execution via unescaped RSS titles

Published Jun 5, 2023 · Updated Jan 8, 2025

Stored XSS in DokuWiki before 2023-04-04a allows remote authenticated users to execute script in a viewer's browser via RSS titles. The rss() method in inc/parser/xhtml.php assumes SimplePie escaped feed titles and appends get_title() output directly to the XHTML document when an item has no link. Low-privileged access must permit RSS content to be embedded, and a user must view the rendered wiki page for script to run in that user's browser.

CVSS severity5.4
Medium
EPSS probability0.74%
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 DokuWiki before 2023-04-04a allows remote authenticated users to execute script in a viewer's browser via RSS titles. The rss() method in inc/parser/xhtml.php assumes SimplePie escaped feed titles and appends get_title() output directly to the XHTML document when an item has no link. Low-privileged access must permit RSS content to be embedded, and a user must view the rendered wiki page for script to run in that user's browser.

The record

CVE
CVE-2023-34408
Published
Jun 5, 2023
Updated
Jan 8, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4NIST NVDCVSS: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.

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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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