TI-2021-20899 Aliases CVE-2021-45889 GHSA-3hxp-29c8-25h6

An issue was discovered in PONTON X/P Messenger before 3.11.2.

LOW 25CWE-79Published 2022-03-13 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: Low
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

An issue was discovered in PONTON X/P Messenger before 3.11.2. Several functions are vulnerable to reflected XSS, as demonstrated by private/index.jsp?partners/ShowNonLocalPartners.do?localID= or private/index.jsp or private/index.jsp?database/databaseTab.jsp or private/index.jsp?activation/activationMainTab.jsp or private/index.jsp?communication/serverTab.jsp or private/index.jsp?emailNotification/notificationTab.jsp.

Why it matters now

EPSS 0.0059 48th 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 · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:ponton:x\/p_messenger:3.8.0:::::::*	3.8.0	Vulnerable	Ponton
cpe:2.3:a:ponton:x\/p_messenger:3.10.0:::::::*	3.10.0	Vulnerable	Ponton

cpe:2.3:a:ponton:x\/p_messenger:3.8.0:*:*:*:*:*:*:* Versions 3.8.0 Vulnerable ·Ponton
cpe:2.3:a:ponton:x\/p_messenger:3.10.0:*:*:*:*:*:*:* Versions 3.10.0 Vulnerable ·Ponton

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-45889
2026-10-03 Alias added: GHSA-3hxp-29c8-25h6

References

Exploit 1

https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2021-078.txt

Advisory 1

https://www.ponton.de/products/xpmessenger/

TI-2021-20897 An issue was discovered in PONTON X/P Messenger before 3.11.2. CVSS 3.1CRITICAL 9.8
TI-2021-20896 An issue was discovered in PONTON X/P Messenger before 3.11.2. CVSS 3.1HIGH 8.8
TI-2021-20898 An issue was discovered in PONTON X/P Messenger before 3.11.2. CVSS 3.1MEDIUM 4.8

Sources

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