CVE-2026-1647Network attack vector

Reflected XSS via unescaped PHP_SELF output

Published Mar 21, 2026 · Updated Mar 21, 2026

Reflected XSS in Comment Genius 1.2.5 and earlier allows remote attackers to execute scripts in a user's browser through a crafted URL. The cgm-options.php code reflects the request-derived $_SERVER['PHP_SELF'] value into HTML without sanitizing the input or escaping the output. Exploitation requires a user to follow the attacker-controlled link; the resulting script runs in the affected WordPress site's security context.

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

Reflected XSS in Comment Genius 1.2.5 and earlier allows remote attackers to execute scripts in a user's browser through a crafted URL. The cgm-options.php code reflects the request-derived $_SERVER['PHP_SELF'] value into HTML without sanitizing the input or escaping the output. Exploitation requires a user to follow the attacker-controlled link; the resulting script runs in the affected WordPress site's security context.

The record

CVE
CVE-2026-1647
Published
Mar 21, 2026
Updated
Mar 21, 2026
Vendor
Basilis Kanonidis
Product
Comment Genius
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 21, 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=* <=1.2.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Basilis Kanonidis · Comment Geniusversion=* <=1.2.5

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.

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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')
T1204.001User Execution: Malicious Link

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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