What is CVE-2021-35377?

CVE-2021-35377 is a medium-severity vulnerability in Vicidial, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-03-06.

How severe is CVE-2021-35377?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Vicidial

CVE-2021-35377

Cross Site Scripting vulnerability found in VICIdial v2.14-610c and v.2.10-415c allows attackers execute arbitrary code via the /agc/vicidial.php, agc/vicidial-greay.php, and /vicidial/KHOMP_admin.php parameters.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-03-06 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (31.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Vicidial — versions 2.9-401c, 2.10-415c, 2.14-597c

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

af854a3a-2127-422b-91ae-364da2661108 (Product)
www.vicidial.org/VICIDIALforum/viewtopic.php (Vendor Advisory)

Frequently asked questions

What is CVE-2021-35377?: CVE-2021-35377 is a medium-severity vulnerability in Vicidial, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-03-06.
How severe is CVE-2021-35377?: Medium severity. CVSS v3 base score is 6.1 out of 10.