Medium severity6.4NVD Advisory· Published Apr 7, 2024· Updated Apr 8, 2026

CVE-2023-6877

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Themeisle/Rss Aggregator By Feedzy
cpe:2.3:a:themeisle:rss_aggregator_by_feedzy:*:*:*:*:*:wordpress:*:*
Range: <4.3.4
WordPress/Feedzy Rss Feedsllm-fuzzy
Range: <=4.3.3
Package: https://wordpress.org/plugins/feedzy-rss-feeds

Patches

Vulnerability mechanics

References

plugins.trac.wordpress.org/changeset/3012849/feedzy-rss-feedsnvdPatch
www.wordfence.com/threat-intel/vulnerabilities/id/7d25e85f-28f7-4cc5-9856-25cc5aaf1418nvdVendor Advisory

News mentions

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cvss	0.416
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000