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CVE-2023-6877

RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator <= 4.3.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Error Message

Published: Apr 7, 2024Updated: Jan 14, 2025 Sources: CVE List NVDCWE-79
NVD MITRE
6.4CVSSMEDIUM
EPSS Score
0.4%
Top 73.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

Description

The RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's shortcode(s) in all versions up to, and including, 4.3.3 due to insufficient input sanitization and output escaping on the Content-Type field of error messages when retrieving an invalid RSS feed. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:CC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-79

Affected Products

rss aggregator by feedzythemeisleWeb & CMS Plugins
RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds AggregatorthemeisleWeb & CMS Plugins
themeislecommercialUSWeb & CMS Plugins

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
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References

https://plugins.trac.wordpress.org/changeset/3012849/feedzy-rss-feeds
plugins.trac.wordpress.org
https://www.wordfence.com/threat-intel/vulnerabilities/id/7d25e85f-28f7-4cc5-9856-25cc5aaf1418?source=cve
wordfence.com

Timeline

Published
Apr 7, 2024
Last Updated
Jan 14, 2025

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