CVE-2026-24389Public exploitNetwork attack vector

Contributor-level stored XSS via unfiltered gallery fields

Published Jan 22, 2026 · Updated Jan 22, 2026

Stored cross-site scripting in WP Chill Gallery PhotoBlocks 1.3.2 and earlier allows remote authenticated users to run script via gallery fields. The save handler accepts custom event JavaScript from users without unfiltered_html, while gallery rendering emits stored event and image metadata without adequate escaping. Contributor-level access and a victim viewing the affected gallery are required, allowing script execution in the victim's WordPress session.

CVSS severity6.5
Medium
EPSS probability0.13%
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 WP Chill Gallery PhotoBlocks 1.3.2 and earlier allows remote authenticated users to run script via gallery fields. The save handler accepts custom event JavaScript from users without unfiltered_html, while gallery rendering emits stored event and image metadata without adequate escaping. Contributor-level access and a victim viewing the affected gallery are required, allowing script execution in the victim's WordPress session.

The record

CVE
CVE-2026-24389
Published
Jan 22, 2026
Updated
Jan 22, 2026
Vendor
WP Chill
Product
Gallery PhotoBlocks
Classifications
CWE-79, CAPEC-588, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 22, 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 <=<= 1.3.2 changes=[{"at":"1.3.3","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WP Chill · Gallery PhotoBlocksversion=n/a <=<= 1.3.2 changes=[{"at":"1.3.3","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
6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-588DOM-Based XSS
T1203Exploitation for Client Execution

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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