What is CVE-2021-29349?

CVE-2021-29349 is a medium-severity vulnerability in Mahara, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2021-03-31.

How severe is CVE-2021-29349?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2021-29349 known to be exploited?

10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

CSRF in Mahara

CVE-2021-29349

Mahara 20.10 is affected by Cross Site Request Forgery (CSRF) that allows a remote attacker to remove inbox-mail on the server. The application fails to validate the CSRF token for a POST request. An attacker can craft a module/multirecipientnotification/inbox.php pieform_delete_all_notifications request, which leads to removing all messages from a mailbox.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2021-03-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.015 (74.0th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Mahara — versions 20.10

Weakness classification (CWE)

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

Public proof-of-concept exploits

References

github.com/0xBaz/CVE-2021-29349/issues/1 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-29349?: CVE-2021-29349 is a medium-severity vulnerability in Mahara, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.5/10. Published 2021-03-31.
How severe is CVE-2021-29349?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2021-29349 known to be exploited?: 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.