CVE-2024-43934Network attack vector

Stored XSS via unsanitized block input

Published Aug 29, 2024 · Updated Apr 28, 2026

Stored XSS in Robert Felty Collapsing Archives 3.0.5 and earlier allows remote authenticated users to inject script through block input. The Gutenberg block fails to sanitize attacker-controlled input before generating page output; public records do not identify the exact attribute or function. A low-privileged account must save crafted block content, and script execution requires another user to view the affected page.

CVSS severity6.5
Medium
EPSS probability0.26%
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 Robert Felty Collapsing Archives 3.0.5 and earlier allows remote authenticated users to inject script through block input. The Gutenberg block fails to sanitize attacker-controlled input before generating page output; public records do not identify the exact attribute or function. A low-privileged account must save crafted block content, and script execution requires another user to view the affected page.

The record

CVE
CVE-2024-43934
Published
Aug 29, 2024
Updated
Apr 28, 2026
Vendor
Robert Felty
Product
Collapsing Archives
Classifications
CWE-79, CAPEC-592, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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=n/a <=3.0.5 changes=[{"at":"3.0.6","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Robert Felty · Collapsing Archivesversion=n/a <=3.0.5 changes=[{"at":"3.0.6","status":"unaffected"}]

Published CVSS scores

6.5PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
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.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
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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