mod/chat/chat_ajax.php in Moodle through 2.3.11, 2.4.x before 2.4.9, 2.5.x before 2.5.5, and 2.6.x before 2.6.2 does not properly check for the mod/chat:chat capability during chat sessions, which allows remote authenticated users to bypass intended access restrictions in opportunistic circumstances by remaining in a chat session after an intra-session capability removal by an administrator
Published Mar 22, 2014
4.9
MEDIUMCVSS 2.0
EPSS 1.03%
Description
mod/chat/chat_ajax.php in Moodle through 2.3.11, 2.4.x before 2.4.9, 2.5.x before 2.5.5, and 2.6.x before 2.6.2 does not properly check for the mod/chat:chat capability during chat sessions, which allows remote authenticated users to bypass intended access restrictions in opportunistic circumstances by remaining in a chat session after an intra-session capability removal by an administrator.
Affected products
No data.
- ≤ 2.3.11
- 2.0.0
- 2.0.1
- 2.0.2
- 2.0.3
- 2.0.4
- 2.0.5
- 2.0.6
- 2.0.7
- 2.0.8
- 2.0.9
- 2.1.0
- 2.1.1
- 2.1.2
- 2.1.3
- 2.1.4
- 2.1.5
- 2.1.6
- 2.1.7
- 2.1.8
- 2.1.9
- 2.1.10
- 2.2.0
- 2.2.1
- 2.2.2
- 2.2.3
- 2.2.4
- 2.2.5
- 2.2.6
- 2.2.7
- 2.2.8
- 2.2.9
- 2.2.10
- 2.2.11
- 2.3.0
- 2.3.1
- 2.3.2
- 2.3.3
- 2.3.4
- 2.3.5
- 2.3.6
- 2.3.7
- 2.3.8
- 2.3.9
- 2.3.10
- 2.4.0
- 2.4.1
- 2.4.2
- 2.4.3
- 2.4.4
- 2.4.5
- 2.4.6
- 2.4.7
- 2.4.8
- 2.5.0
- 2.5.1
- 2.5.2
- 2.5.3
- 2.5.4
- 2.6.0
- 2.6.1
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.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:S/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 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 | 1.03% (0.01026) | 62.29th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.02% (0.01017) | 58.67th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.17% (0.00171) | 36.03th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.12% (0.00121) | 48.12th | v3 (v2023.03.01) |
| Jun 14, 2024 | 0.12% (0.00121) | 46.74th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.12% (0.00121) | 44.70th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.06% (0.01061) | 52.82th | v2 (v2022.01.01) |
| Sep 19, 2022 | 1.06% (0.01061) | 51.19th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.06% (0.01061) | 49.19th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.06% (0.01061) | 28.23th | v2 (v2022.01.01) |
References (9)
- http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-44082 x_refsource_CONFIRM
- http://openwall.com/lists/oss-security/2014/03/17/1 mailing-listx_refsource_MLIST
- https://github.com/advisories/GHSA-f9m9-494r-w36p Advisory
- https://github.com/moodle/moodle/commit/3d7810ab3d67a423a760ba89ae75de81d940b236
- https://github.com/moodle/moodle/commit/4d4867503c2467cb04660d9cb314d22f56004054
- https://github.com/moodle/moodle/commit/5c45ea0c6bf2fdf4dddfaef9fc5ff12e6b426a3f
- https://github.com/moodle/moodle/commit/7748e17207b1a28118d9dc622878da22f956d3fe
- https://moodle.org/mod/forum/discuss.php?d=256418 x_refsource_CONFIRMVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2014-0122
Change history (0)
No recorded changes yet.