A vulnerability was found in Moodle 3.7 to 3.7.1, 3.6 to 3.6.5, 3.5 to 3.5.7 and earlier unsupported versions, where forum subscribe link contained an open redirect if forced subscription mode was enabled
Published Mar 19, 2021
6.1
MEDIUMCVSS 3.1
EPSS 0.81%
Description
A vulnerability was found in Moodle 3.7 to 3.7.1, 3.6 to 3.6.5, 3.5 to 3.5.7 and earlier unsupported versions, where forum subscribe link contained an open redirect if forced subscription mode was enabled. If a forum's subscription mode was set to "forced subscription", the forum's subscribe link contained an open redirect.
Affected products
- Vendor n/a Product Moodle Defaultn/a
- Version 3.7 to 3.7.1, 3.6 to 3.6.5, 3.5 to 3.5.7 and earlier unsupported versionsStatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Moodle | n/a |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.81% (0.00810) | 55.45th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.81% (0.00810) | 55.38th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.08% (0.00084) | 36.49th | v3 (v2023.03.01) |
| Dec 3, 2023 | 0.08% (0.00084) | 35.08th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.08% (0.00078) | 31.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.62% (0.00624) | 17.80th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (2)
- https://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=32e2e06a8737afb07ee83abb3eacd39f8b181216 x_refsource_MISC
- https://moodle.org/mod/forum/discuss.php?d=391037 x_refsource_MISCRelease NotesVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=32e2e06a8737afb07ee83abb3eacd39f8b181216 | x_refsource_MISC | |
| https://moodle.org/mod/forum/discuss.php?d=391037 | x_refsource_MISCRelease NotesVendor Advisory |
Change history (0)
No recorded changes yet.