TI-2026-70253 Aliases CVE-2026-104735 GHSA-j8xc-7f4h-xqfx

Stored cross-site scripting in Feedzy RSS Aggregator plugin

LOW 28CWE-79Published 2026-10-10 · Updated 2026-10-11

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

The RSS Aggregator by Feedzy WordPress plugin, from 0 up to and including 5.2.10, does not sufficiently sanitize or escape the Feedzy Loop Block feed URL and RSS title input (CWE-79). The malicious HTML is injected at render time from the attacker-controlled feed title, so injected scripts run whenever a user opens an affected page. An authenticated attacker with contributor-level access or above can inject these scripts.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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 Feedzy Loop Block Feed URL / RSS <title> in all versions up to, and including, 5.2.10 due to insufficient input sanitization and output escaping. 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. The payload is not neutralized at save time because post_content stores only a benign block reference to an external feed URL; the malicious HTML is injected at render time from the attacker-controlled RSS feed title, bypassing any save-time wp_kses filtering.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00209 11th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
themeisle	RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator	up to 5.2.10	—	No fix listed	CNA

RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator Vendorthemeisle Affected up to 5.2.10 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:themeisle:rss_aggregator_by_feedzy::::::::	—	—	themeisle

cpe:2.3:a:themeisle:rss_aggregator_by_feedzy:*:*:*:*:*:*:*:* Versions — — ·themeisle

Remediation

The sources list no fixed version for RSS Aggregator by Feedzy (Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator).

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

2026-10-10 Threatist record created from CVE-2026-104735
2026-10-10 Alias added: GHSA-j8xc-7f4h-xqfx
2026-10-11 CISA SSVC decision points changed
2026-10-11 Priority changed: MEDIUM → LOW

References

Other 6

TI-2017-14315 WordPress Insert PHP Plugin < 3.3.1 PHP Code Injection via REST API CVSS 4.0CRITICAL 9.3
TI-2023-02146 Otter - Gutenberg Blocks < 2.2.6 - Author+ PHAR Deserialization CVSS 3.1HIGH 8.8
TI-2023-20819 WordPress Redirection for Contact Form 7 plugin <= 2.9.2 - Broken Access Control vulnerability CVSS 3.1HIGH 7.5
TI-2019-12631 A blind SSRF vulnerability exists in the Visualizer plugin before 3.3.1 for WordPress via… CVSS 3.1CRITICAL 10.0
TI-2023-02115 Product Addons & Fields for WooCommerce < 32.0.7 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
TI-2022-04265 RSS Aggregator by Feedzy < 4.1.1 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4

See all 135 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences