In Roundcube from versions 1.2.0 to 1.3.5, with the archive plugin enabled and configured, it's possible to exploit the unsanitized, user-controlled "_uid" parameter (in an archive.php _task=mail&_mbox=INBOX&_action=plugin.move2archive request) to perform an MX (IMAP) injection attack by placing an IMAP command after a %0d%0a sequence
Published Apr 7, 2018
8.8
HIGHCVSS 3.0
EPSS 2.19%
Description
In Roundcube from versions 1.2.0 to 1.3.5, with the archive plugin enabled and configured, it's possible to exploit the unsanitized, user-controlled "_uid" parameter (in an archive.php _task=mail&_mbox=INBOX&_action=plugin.move2archive request) to perform an MX (IMAP) injection attack by placing an IMAP command after a %0d%0a sequence. NOTE: this is less easily exploitable in 1.3.4 and later because of a Same Origin Policy protection mechanism.
Affected products
No data.
Configuration 2
- 9.0
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:R/S:U/C:H/I:H/A:H
AV:N/AC:M/Au:N/C:P/I:P/A:P
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
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.19% (0.02193) | 81.80th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.29% (0.02289) | 80.89th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.70% (0.00697) | 69.60th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.92% (0.01923) | 72.39th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.70% (0.00697) | 70.24th | v4 (v2025.03.14) |
| Dec 12, 2024 | 40.80% (0.40803) | 97.42th | v3 (v2023.03.01) |
| Nov 25, 2023 | 40.80% (0.40803) | 96.92th | v3 (v2023.03.01) |
| Nov 8, 2023 | 48.55% (0.48551) | 97.14th | v3 (v2023.03.01) |
| Oct 8, 2023 | 67.99% (0.67993) | 97.58th | v3 (v2023.03.01) |
| Aug 29, 2023 | 73.74% (0.73738) | 97.69th | v3 (v2023.03.01) |
| Apr 1, 2023 | 76.15% (0.76151) | 97.64th | v3 (v2023.03.01) |
| Mar 7, 2023 | 78.49% (0.78486) | 97.67th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01040) | 28.32th | v1 |
| Jan 6, 2022 | 1.04% (0.01040) | 27.69th | v1 |
| Sep 1, 2021 | 1.04% (0.01040) | 64.49th | v1 |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
References (4)
- https://github.com/roundcube/roundcubemail/issues/6229 x_refsource_MISCPatchThird Party Advisory
- https://github.com/roundcube/roundcubemail/issues/6238 x_refsource_MISCPatchThird Party Advisory
- https://medium.com/%40ndrbasi/cve-2018-9846-roundcube-303097048b0a x_refsource_MISC
- https://www.debian.org/security/2018/dsa-4181 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/roundcube/roundcubemail/issues/6229 | x_refsource_MISCPatchThird Party Advisory | |
| https://github.com/roundcube/roundcubemail/issues/6238 | x_refsource_MISCPatchThird Party Advisory | |
| https://medium.com/%40ndrbasi/cve-2018-9846-roundcube-303097048b0a | x_refsource_MISC | |
| https://www.debian.org/security/2018/dsa-4181 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.