CVE-2025-23889Network attack vector

Unauthenticated browser script execution

Published Jan 24, 2025 · Updated May 11, 2026

Reflected XSS in FooGallery Captions 1.0.2 and earlier allows remote attackers to execute script in a user's browser via a crafted request. Neither Patchstack nor the CNA record identifies the affected request parameter or code path that reflects it without output encoding. Exploitation requires a user to open a malicious link or page, after which attacker-supplied script executes in the site's origin and can alter page content or access browser-visible data.

CVSS severity7.1
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in FooGallery Captions 1.0.2 and earlier allows remote attackers to execute script in a user's browser via a crafted request. Neither Patchstack nor the CNA record identifies the affected request parameter or code path that reflects it without output encoding. Exploitation requires a user to open a malicious link or page, after which attacker-supplied script executes in the site's origin and can alter page content or access browser-visible data.

The record

CVE
CVE-2025-23889
Published
Jan 24, 2025
Updated
May 11, 2026
Vendor
Tor Morten Jensen
Product
FooGallery Captions
Classifications
CWE-79, CAPEC-591, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 24, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=0 <=1.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Tor Morten Jensen · FooGallery Captionsversion=0 <=1.0.2

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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')
CAPEC-591Reflected XSS
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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