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TI-2025-03665 Aliases CVE-2025-4126GHSA-47qp-9grv-hjc7

EG-Series <= 2.1.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

Priority LOW 28CWE-80Published · Updated

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-80.

Summary

The EG-Series plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's [series] shortcode in all versions up to, and including, 2.1.1 due to insufficient input sanitization and output escaping on user supplied attributes in the shortcode_title function. This makes it possible for authenticated attackers - with contributor-level access and above, on sites with the Classic Editor plugin activated - to inject arbitrary JavaScript code in the titletag attribute that will execute whenever a user access an injected page.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00294 22nd 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

VendorProductAffected versionsFixed inStatusSource
emmanuelgEG-Seriesup to 2.1.1—No fix listedCNA
  • EG-Series Vendoremmanuelg Affected up to 2.1.1 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-4126
  2. 2026-10-03 Alias added: GHSA-47qp-9grv-hjc7

References

Other 2

Sources

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