lib/moodlelib.php in Moodle through 2.6.11, 2.7.x before 2.7.10, 2.8.x before 2.8.8, and 2.9.x before 2.9.2 relies on the PHP mt_rand function to implement the random_string and complex_random_string functions, which makes it easier for remote attackers to predict password-recovery tokens via a brute-force approach
Published Feb 22, 2016
7.5
HIGHCVSS 3.0
EPSS 2.37%
Description
lib/moodlelib.php in Moodle through 2.6.11, 2.7.x before 2.7.10, 2.8.x before 2.8.8, and 2.9.x before 2.9.2 relies on the PHP mt_rand function to implement the random_string and complex_random_string functions, which makes it easier for remote attackers to predict password-recovery tokens via a brute-force approach.
Affected products
No data.
- ≤ 2.6.11
- 2.7.0
- 2.7.1
- 2.7.2
- 2.7.3
- 2.7.4
- 2.7.5
- 2.7.6
- 2.7.7
- 2.7.8
- 2.7.9
- 2.8.0
- 2.8.1
- 2.8.2
- 2.8.3
- 2.8.4
- 2.8.5
- 2.8.6
- 2.8.7
- 2.9.0
- 2.9.1
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.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
AV:N/AC:L/Au:N/C:P/I:N/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 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.37% (0.02374) | 83.23th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.37% (0.02374) | 81.60th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.54% (0.00537) | 65.52th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.34% (0.00340) | 72.29th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.34% (0.00340) | 70.64th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.34% (0.00340) | 66.85th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
References (11)
- http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-50860 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2015/09/21/1 mailing-listx_refsource_MLIST
- http://www.securitytracker.com/id/1033619 vdb-entryx_refsource_SECTRACK
- https://github.com/advisories/GHSA-382v-gxj9-ffhc Advisory
- https://github.com/moodle/moodle/commit/289bc7f9e3022918b4cfd2cc9851472f0cea2896
- https://github.com/moodle/moodle/commit/5337b2295237958c93b6c65fa595859aaa7bf257
- https://github.com/moodle/moodle/commit/6e8224365ffcdf328458ea7852dc62574e806119
- https://github.com/moodle/moodle/commit/e4ac3879c2d1f8fe66caa74ff1544248bccef61e
- https://moodle.org/mod/forum/discuss.php?d=320291 x_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-5267
- https://web.archive.org/web/20160323063809/http://www.securitytracker.com/id/1033619
Change history (0)
No recorded changes yet.