CVE-2025-13626Network attack vector

Reflected XSS via unescaped PHP_SELF form action

Published Dec 6, 2025 · Updated Apr 8, 2026

Reflected XSS in Dennis Ploetner myLCO 0.8.1 and earlier allows remote attackers to execute scripts via a crafted request URL. At myLCO.php line 438, the plugin writes attacker-controlled $_SERVER['PHP_SELF'] into an HTML form action without sanitization or output escaping. Execution requires a victim to follow the crafted link, after which the script runs in the affected site's browser origin and can read or alter page-accessible data.

CVSS severity6.1
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

Reflected XSS in Dennis Ploetner myLCO 0.8.1 and earlier allows remote attackers to execute scripts via a crafted request URL. At myLCO.php line 438, the plugin writes attacker-controlled $_SERVER['PHP_SELF'] into an HTML form action without sanitization or output escaping. Execution requires a victim to follow the crafted link, after which the script runs in the affected site's browser origin and can read or alter page-accessible data.

The record

CVE
CVE-2025-13626
Published
Dec 6, 2025
Updated
Apr 8, 2026
Vendor
Dennis Ploetner
Product
myLCO
Classifications
CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 6, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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 <=0.8.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Dennis Ploetner · myLCOversion=0 <=0.8.1

Published CVSS scores

6.1WordfenceCVSS: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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