CVE-2026-7441Public exploitNetwork attack vector

Stored XSS via unescaped shortcode posttype attribute

Published Aug 5, 2026 · Updated Aug 5, 2026

Stored XSS in Simple Yearly Archive 2.2.4 and earlier allows remote authenticated users to inject scripts through the posttype shortcode attribute. The SimpleYearlyArchive shortcode handler accepts the posttype attribute without sufficient sanitization and emits it into generated archive markup without output escaping. Contributor-level access is sufficient to store the payload in a post or page, and the script runs in the browser of each user who opens the injected content.

CVSS severity6.4
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 Simple Yearly Archive 2.2.4 and earlier allows remote authenticated users to inject scripts through the posttype shortcode attribute. The SimpleYearlyArchive shortcode handler accepts the posttype attribute without sufficient sanitization and emits it into generated archive markup without output escaping. Contributor-level access is sufficient to store the payload in a post or page, and the script runs in the browser of each user who opens the injected content.

The record

CVE
CVE-2026-7441
Published
Aug 5, 2026
Updated
Aug 5, 2026
Vendor
Oliver Schlöbe
Product
Simple Yearly Archive
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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 <=2.2.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Oliver Schlöbe · Simple Yearly Archiveversion=0 <=2.2.4

Published CVSS scores

6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/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 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 exploitPublished

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

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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