The sqlauth module in SimpleSAMLphp before 1.15.2 relies on the MySQL utf8 charset, which truncates queries upon encountering four-byte characters
Published Feb 2, 2018
9.8
CRITICALCVSS 3.0
EPSS 3.05%
Description
The sqlauth module in SimpleSAMLphp before 1.15.2 relies on the MySQL utf8 charset, which truncates queries upon encountering four-byte characters. There might be a scenario in which this allows remote attackers to bypass intended access restrictions.
Affected products
No data.
Configuration 1
- < 1.15.2
Configuration 2
- 7.0
- 8.0
- 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:N/S:U/C:H/I:H/A:H
AV:N/AC:L/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 v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.05% (0.03053) | 87.11th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.11% (0.03111) | 86.05th | v5 (v2026.06.15) |
| Jul 20, 2024 | 1.16% (0.01158) | 85.04th | v3 (v2023.03.01) |
| Jul 13, 2024 | 1.16% (0.01158) | 85.03th | v3 (v2023.03.01) |
| Aug 4, 2023 | 1.16% (0.01158) | 83.02th | v3 (v2023.03.01) |
| Jun 25, 2023 | 1.63% (0.01632) | 85.74th | v3 (v2023.03.01) |
| May 8, 2023 | 1.36% (0.01361) | 84.17th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.57% (0.01570) | 85.19th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.05% (0.01046) | 28.66th | v1 |
| Jan 6, 2022 | 1.05% (0.01046) | 28.03th | v1 |
| Sep 1, 2021 | 1.05% (0.01046) | 65.02th | v1 |
| Apr 14, 2021 | 1.05% (0.01046) | 0.00th | v1 |
No CWE recorded.
References (6)
- https://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/simplesamlphp/CVE-2018-6521.yaml
- https://github.com/advisories/GHSA-qv5p-6wrc-79wg Advisory
- https://lists.debian.org/debian-lts-announce/2018/02/msg00008.html mailing-listx_refsource_MLISTExploitMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-6521
- https://simplesamlphp.org/security/201801-03 x_refsource_CONFIRMVendor Advisory
- https://www.debian.org/security/2018/dsa-4127 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/simplesamlphp/CVE-2018-6521.yaml | ||
| https://github.com/advisories/GHSA-qv5p-6wrc-79wg | Advisory | |
| https://lists.debian.org/debian-lts-announce/2018/02/msg00008.html | mailing-listx_refsource_MLISTExploitMailing ListThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-6521 | ||
| https://simplesamlphp.org/security/201801-03 | x_refsource_CONFIRMVendor Advisory | |
| https://www.debian.org/security/2018/dsa-4127 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.