TI-2020-13440 Aliases CVE-2020-18699 GHSA-rvf8-c35m-8289

Cross Site Scripting (XSS) in Lin-CMS-Flask v0.1.1 allows remote attackers to execute…

LOW 30CWE-79Published 2021-08-16 · 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 and GitHub. Impact type from CWE-79.

Summary

Cross Site Scripting (XSS) in Lin-CMS-Flask v0.1.1 allows remote attackers to execute arbitrary code by entering scripts in the the 'Username' parameter of the in component 'app/api/cms/user.py'.

Why it matters now

EPSS 0.01276 70th 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
—	lin-cms (PyPI)	up to 0.1.1b2	—	No fix listed	GHSA-rvf8-c35m-8289

— Vendor— Affected all versions Fixed in — No fix listed CNA
lin-cms (PyPI) Vendor— Affected up to 0.1.1b2 Fixed in — No fix listed GHSA-rvf8-c35m-8289

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:talelin:lin-cms-flask:0.1.1:::::::*	0.1.1	Vulnerable	TaleLin

cpe:2.3:a:talelin:lin-cms-flask:0.1.1:*:*:*:*:*:*:* Versions 0.1.1 Vulnerable ·TaleLin

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-18699
2026-10-03 Alias added: GHSA-rvf8-c35m-8289

References

Exploit 1

https://github.com/TaleLin/lin-cms-flask/issues/28

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2020-18699

Other 2

TI-2020-13441 Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain… CVSS 3.1CRITICAL 9.8
TI-2020-13439 Improper Authentication in Lin-CMS-Flask v0.1.1 allows remote attackers to launch brute… CVSS 3.1CRITICAL 9.8

Sources

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