CVE-2026-5077Network attack vector

Stored XSS via unescaped image alt attribute

Published May 2, 2026 · Updated May 2, 2026

Stored XSS in HashThemes Total 2.2.1 and earlier allows remote authenticated users to execute scripts via crafted post titles. The Home Page blog-section template passes the_title() directly into a featured-image alt attribute without attribute-context escaping, so quotes in a stored title can introduce executable markup. Contributor-level access is sufficient, but the post must be published with a featured image and a visitor must load the affected blog section.

CVSS severity5.4
Medium
EPSS probability0.19%
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 HashThemes Total 2.2.1 and earlier allows remote authenticated users to execute scripts via crafted post titles. The Home Page blog-section template passes the_title() directly into a featured-image alt attribute without attribute-context escaping, so quotes in a stored title can introduce executable markup. Contributor-level access is sufficient, but the post must be published with a featured image and a visitor must load the affected blog section.

The record

CVE
CVE-2026-5077
Published
May 2, 2026
Updated
May 2, 2026
Vendor
HashThemes
Product
Total
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 2, 2026CVE publishedPublication date reported by the CVE source.
  2. May 2, 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 <=2.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

HashThemes · Totalversion=0 <=2.2.1

Published CVSS scores

5.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
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/JScript

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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