Atto in Moodle 2.8.x before 2.8.9 and 2.9.x before 2.9.3 allows remote attackers to cause a denial of service (disk consumption) by leveraging the guest role and entering drafts with the editor-autosave feature
Published Feb 22, 2016
6.8
MEDIUMCVSS 3.0
EPSS 1.68%
Description
Atto in Moodle 2.8.x before 2.8.9 and 2.9.x before 2.9.3 allows remote attackers to cause a denial of service (disk consumption) by leveraging the guest role and entering drafts with the editor-autosave feature.
Affected products
No data.
- 2.8.0
- 2.8.1
- 2.8.2
- 2.8.3
- 2.8.4
- 2.8.5
- 2.8.6
- 2.8.7
- 2.8.8
- 2.9.0
- 2.9.1
- 2.9.2
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:H/PR:N/UI:N/S:C/C:N/I:N/A:H
AV:N/AC:M/Au:N/C:N/I:N/A:C
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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.68% (0.01684) | 76.15th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.68% (0.01684) | 73.92th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.88% (0.00880) | 73.25th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.04% (0.02035) | 73.04th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.88% (0.00880) | 73.74th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.21% (0.00210) | 59.87th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.21% (0.00210) | 59.10th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.21% (0.00210) | 57.10th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
References (2)
- http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-51000 x_refsource_CONFIRM
- https://moodle.org/mod/forum/discuss.php?d=323229 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-51000 | x_refsource_CONFIRM | |
| https://moodle.org/mod/forum/discuss.php?d=323229 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.