CVE-2026-11371Public exploitNetwork attack vector

Unauthenticated stored XSS via unsanitized AI summaries

Published Jul 16, 2026 · Updated Jul 16, 2026

Stored XSS in WPDeveloper BetterDocs before 4.5.5 allows remote attackers to execute scripts in visitors' browsers via prompt injection. The betterdocs_generate_article_summary AJAX action accepts unauthenticated post content, caches the unsanitized AI response in _betterdocs_article_summary, and renders it through jQuery .html(). Exploitation requires the AI Doc Summarizer, a configured provider key, a published document with the summary block, and no cached benign summary; an administrator viewing the page runs the stored payload.

CVSS severity6.1
Medium
EPSS probability0.27%
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 WPDeveloper BetterDocs before 4.5.5 allows remote attackers to execute scripts in visitors' browsers via prompt injection. The betterdocs_generate_article_summary AJAX action accepts unauthenticated post content, caches the unsanitized AI response in _betterdocs_article_summary, and renders it through jQuery .html(). Exploitation requires the AI Doc Summarizer, a configured provider key, a published document with the summary block, and no cached benign summary; an administrator viewing the page runs the stored payload.

The record

CVE
CVE-2026-11371
Published
Jul 16, 2026
Updated
Jul 16, 2026
Vendor
ReviewX Team
Product
BetterDocs
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 16, 2026Record 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=4.0.0 <4.5.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ReviewX Team · BetterDocsversion=4.0.0 <4.5.5

Published CVSS scores

6.1CISA-ADPCVSS: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

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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