CVE-2026-1843Network attack vector

Stored XSS via unescaped Activity Log entries

Published Feb 14, 2026 · Updated Feb 14, 2026

Stored XSS in Optimole Super Page Cache 5.2.2 and earlier allows remote attackers to inject scripts through the Activity Log. The Activity Log viewer in libs/logs.class.php places raw file_get_contents() output inside a pre element without HTML escaping. No authentication is required to plant a payload; opening the stored log content executes it in the visitor's browser under the site origin.

CVSS severity7.2
High
EPSS probability0.20%
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 Optimole Super Page Cache 5.2.2 and earlier allows remote attackers to inject scripts through the Activity Log. The Activity Log viewer in libs/logs.class.php places raw file_get_contents() output inside a pre element without HTML escaping. No authentication is required to plant a payload; opening the stored log content executes it in the visitor's browser under the site origin.

The record

CVE
CVE-2026-1843
Published
Feb 14, 2026
Updated
Feb 14, 2026
Vendor
Optimole
Product
Super Page Cache
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 14, 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=* <=5.2.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Optimole · Super Page Cacheversion=* <=5.2.2

Published CVSS scores

7.2WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 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')
T1059.007Command and Scripting Interpreter: JavaScript

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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