CVE-2024-0688: The "WebSub (FKA. PubSubHubbub)" plugin for WordPress is vulnerable to Stored Cross-Site Scripting via plugin settings in all versions up to, and...
Description
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.
Classification
CVE ID: CVE-2024-0688
CVSS Base Severity: MEDIUM
CVSS Base Score: 4.4
CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
Problem Types
CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)Affected Products
Vendor: joshfraz
Product: WebSub (FKA. PubSubHubbub)
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.12% (probability of being exploited)
EPSS Percentile: 31.95% (scored less or equal to compared to others)
EPSS Date: 2025-06-20 (when was this score calculated)
Stakeholder-Specific Vulnerability Categorization (SSVC)
SSVC Exploitation: none
SSVC Technical Impact: partial
SSVC Automatable: false
References
https://nvd.nist.gov/vuln/detail/CVE-2024-0688https://www.wordfence.com/threat-intel/vulnerabilities/id/f07b166b-3436-4797-a2df-096ff7c27a09?source=cve
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3024228%40pubsubhubbub&new=3024228%40pubsubhubbub&sfp_email=&sfph_mail=