Cross-site request forgery (CSRF) vulnerability in the wp_ajax_wp_compression_test function in wp-admin/includes/ajax-actions.php in WordPress before 4.5 allows remote attackers to hijack the authentication of administrators for requests that change the script compression option
Published Aug 7, 2016
8.8
HIGHCVSS 3.0
EPSS 1.91%
Description
Cross-site request forgery (CSRF) vulnerability in the wp_ajax_wp_compression_test function in wp-admin/includes/ajax-actions.php in WordPress before 4.5 allows remote attackers to hijack the authentication of administrators for requests that change the script compression option.
Affected products
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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.91% (0.01906) | 79.00th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.48% (0.02478) | 82.42th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.29% (0.00289) | 49.36th | v4 (v2025.03.14) |
| Mar 29, 2025 | 20.07% (0.20074) | 92.64th | v4 (v2025.03.14) |
| Mar 24, 2025 | 0.29% (0.00289) | 49.38th | v4 (v2025.03.14) |
| Mar 23, 2025 | 2.57% (0.02571) | 82.74th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.29% (0.00289) | 50.23th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.13% (0.00129) | 49.46th | v3 (v2023.03.01) |
| Jun 14, 2024 | 0.13% (0.00129) | 48.08th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.13% (0.00129) | 46.04th | 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 (4)
- http://codex.wordpress.org/Version_4.5 x_refsource_CONFIRMRelease Notes
- http://www.debian.org/security/2016/dsa-3681 vendor-advisoryx_refsource_DEBIAN
- https://github.com/WordPress/WordPress/commit/9b7a7754133c50b82bd9d976fb5b24094f658aab x_refsource_CONFIRMPatch
- https://wpvulndb.com/vulnerabilities/8475 x_refsource_MISCThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://codex.wordpress.org/Version_4.5 | x_refsource_CONFIRMRelease Notes | |
| http://www.debian.org/security/2016/dsa-3681 | vendor-advisoryx_refsource_DEBIAN | |
| https://github.com/WordPress/WordPress/commit/9b7a7754133c50b82bd9d976fb5b24094f658aab | x_refsource_CONFIRMPatch | |
| https://wpvulndb.com/vulnerabilities/8475 | x_refsource_MISCThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.