What is CVE-2021-26215?

CVE-2021-26215 is a medium-severity vulnerability in Seeddms, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2021-03-18.

How severe is CVE-2021-26215?

Medium severity. CVSS v3 base score is 4.3 out of 10.

CSRF in Seeddms

CVE-2021-26215

SeedDMS 5.1.x is affected by cross-site request forgery (CSRF) in out.EditDocument.php.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2021-03-18 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (40.4th percentile), scored 2026-10-07.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Seeddms

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

af854a3a-2127-422b-91ae-364da2661108 (Product)
tuhin1729.medium.com/cve-2021-26215-7ce6800be822 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-26215?: CVE-2021-26215 is a medium-severity vulnerability in Seeddms, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2021-03-18.
How severe is CVE-2021-26215?: Medium severity. CVSS v3 base score is 4.3 out of 10.