TI-2020-16231 Aliases CVE-2020-26642 GHSA-84w2-g5p3-84v5

A cross-site scripting (XSS) vulnerability has been discovered in the login page of…

LOW 28CWE-79Published 2021-05-28 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
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 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

A cross-site scripting (XSS) vulnerability has been discovered in the login page of SeaCMS version 11 which allows an attacker to inject arbitrary web script or HTML.

Why it matters now

EPSS 0.00662 51st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:seacms:seacms:11.0:::::::*	11.0	Vulnerable	SeaCMS

cpe:2.3:a:seacms:seacms:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·SeaCMS

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-26642
2026-10-03 Alias added: GHSA-84w2-g5p3-84v5
2026-10-06 EPSS moved to the 50th–90th percentile

References

Exploit 1

https://www.chinapyg.com/thread-137805-1-1.html

TI-2025-21155 SeaCMS v13.3 has a SQL injection vulnerability in the component admin_tempvideo.php. CVSS 3.1CRITICAL 9.8
TI-2025-19037 Seacms <=13.3 is vulnerable to SQL Injection in admin_type_news.php. CVSS 3.1CRITICAL 9.8
TI-2025-19036 Seacms <13.3 is vulnerable to SQL Injection in admin_pay.php. CVSS 3.1CRITICAL 9.8
TI-2025-19035 Seacms <=13.3 is vulnerable to SQL Injection in admin_zyk.php. CVSS 3.1CRITICAL 9.8
TI-2025-19034 Seacms <=13.3 is vulnerable to SQL Injection in admin_reslib.php. CVSS 3.1CRITICAL 9.8
TI-2025-19033 Seacms <=13.3 is vulnerable to SQL Injection in admin_paylog.php. CVSS 3.1CRITICAL 9.8

See all 113 →

Sources

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