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TI-2023-12351 Aliases CVE-2023-27641GHSA-83w9-cx5r-7hgx

The REPORT (after z but before a) parameter in wa.exe in L-Soft LISTSERV 16.5 before 17…

Priority LOW 29CWE-79Published · Updated

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

The REPORT (after z but before a) parameter in wa.exe in L-Soft LISTSERV 16.5 before 17 allows an attacker to conduct XSS attacks via a crafted URL.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01092 65th 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

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

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:lsoft:listserv:*:*:*:*:*:*:*:*before 17.0VulnerableLsoft
  • cpe:2.3:a:lsoft:listserv:*:*:*:*:*:*:*:* Versions before 17.0 Vulnerable ·Lsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-27641
  2. 2026-10-03 Alias added: GHSA-83w9-cx5r-7hgx

References

Exploit 1

  • TI-2000-00425 Buffer overflow in the Web Archives component of L-Soft LISTSERV 1.8 allows remote… CVSS 2.0HIGH 10.0
  • TI-2022-19156 The LISTSERV 17 web interface allows remote attackers to conduct Insecure Direct Object… CVSS 3.1HIGH 7.5
  • TI-2006-01014 Multiple buffer overflows in LISTSERV 14.3 and 14.4, including LISTSERV Lite and HPO… CVSS 2.0HIGH 7.5
  • TI-2000-00630 Buffer overflow in the web archive component of L-Soft Listserv 1.8d and earlier allows… CVSS 2.0HIGH 7.5
  • TI-2019-11603 Reflected cross site scripting (XSS) in L-Soft LISTSERV before 16.5-2018a exists via the /scripts/wa.exe OK parameter. CVSS 3.0MEDIUM 6.1
  • TI-2005-01680 Multiple unknown vulnerabilities in L-Soft LISTSERV 14.3, 1.8e, and 1.8d allow remote… CVSS 2.0HIGH 7.5
See all 9 →

Sources

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