CVE-2026-77365Network attack vector

Unauthenticated stored XSS via above-fold image parameter

Published Aug 28, 2026 · Updated Aug 28, 2026

Stored cross-site scripting in Optimole WordPress Plugin 4.2.10 and earlier allows remote attackers to inject scripts via the a parameter. The page-profiler REST path stores the a value as above_fold_images, and Profile.php later emits it without adequate sanitization or output escaping. No account is required; the stored script runs in the affected site's origin whenever a user opens an injected page.

CVSS severity7.2
High
EPSS probability0.31%
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 Optimole WordPress Plugin 4.2.10 and earlier allows remote attackers to inject scripts via the a parameter. The page-profiler REST path stores the a value as above_fold_images, and Profile.php later emits it without adequate sanitization or output escaping. No account is required; the stored script runs in the affected site's origin whenever a user opens an injected page.

The record

CVE
CVE-2026-77365
Published
Aug 28, 2026
Updated
Aug 28, 2026
Vendor
Optimole
Product
Optimole WordPress Plugin
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 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 <=4.2.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Optimole · Optimole WordPress Pluginversion=0 <=4.2.10

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.

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')
T1059.007JavaScript/JScript

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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