CVE-2024-0688 MEDIUM

CVE-2024-0688: WebSub (FKA. PubSubHubbub) <= 3.1.4 - Authenticated (Admin+) Stored Cross-Site Scripting

Vendor Joshfraz

Product WebSub (FKA. PubSubHubbub)

Weakness CWE-79 · XSS

Published January 25, 2024

Last update April 8, 2026

View on NVD All CVEs

CVSS base score

4.4/10

Attack vector Network

Attack complexity High

Privileges required High

User interaction None

Confidentiality Low

Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

The "WebSub (FKA. PubSubHubbub)" plugin for WordPress is vulnerable to Stored Cross-Site Scripting via plugin settings in all versions up to, and including, 3.1.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Key dates

02Disclosure timeline

January 25, 2024 CVE published

April 8, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2024-0688 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html

Related vulnerabilities

04Related CVE

CVE-2026-30235 Business Logic Error on OpenProject through hyperlinks in markdown using DOM clobbering CVE-2026-2583 Blocksy <= 2.1.30 - Authenticated (Contributor+) Stored Cross-Site Scripting via `blocksy_meta` Fields CVE-2026-2988 Blubrry PowerPress <= 11.15.15 - Authenticated (Contributor+) Stored Cross-Site Scripting via powerpress and podcast Shortcodes CVE-2026-27253 Adobe Experience Manager | Cross-site Scripting (Stored XSS) (CWE-79) CVE-2026-35169 LORIS has potential cross-site scripting in help_editor module