XSS in Lsoft Listserv

CVE-2019-15501

Reflected cross site scripting (XSS) in L-Soft LISTSERV before 16.5-2018a exists via the /scripts/wa.exe OK parameter.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.082 (94.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Lsoft Listserv
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)
cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-15501?: CVE-2019-15501 is a medium-severity vulnerability in Lsoft Listserv, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-08-26.
How severe is CVE-2019-15501?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2019-15501 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.