wp-includes/functions.php in WordPress before 4.9.1 does not require the unfiltered_html capability for upload of .js files, which might allow remote attackers to conduct XSS attacks via a crafted file
Published Dec 2, 2017
5.4
MEDIUMCVSS 3.0
EPSS 3.47%
Description
wp-includes/functions.php in WordPress before 4.9.1 does not require the unfiltered_html capability for upload of .js files, which might allow remote attackers to conduct XSS attacks via a crafted file.
Affected products
No data.
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:L/UI:R/S:C/C:L/I:L/A:N
AV:N/AC:M/Au:S/C:N/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 2, 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 (44 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.47% (0.03473) | 88.70th | v5 (v2026.06.15) |
| Sep 22, 2026 | 3.47% (0.03473) | 88.56th | v5 (v2026.06.15) |
| Sep 21, 2026 | 5.63% (0.05625) | 92.64th | v5 (v2026.06.15) |
| Sep 6, 2026 | 3.47% (0.03473) | 88.30th | v5 (v2026.06.15) |
| Sep 5, 2026 | 5.63% (0.05625) | 92.48th | v5 (v2026.06.15) |
| Aug 30, 2026 | 3.47% (0.03473) | 88.24th | v5 (v2026.06.15) |
| Aug 28, 2026 | 5.63% (0.05625) | 92.43th | v5 (v2026.06.15) |
| Aug 24, 2026 | 3.47% (0.03473) | 88.17th | v5 (v2026.06.15) |
| Aug 23, 2026 | 5.63% (0.05625) | 92.40th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.13% (0.04132) | 89.48th | v5 (v2026.06.15) |
| Apr 18, 2026 | 4.18% (0.04179) | 88.72th | v4 (v2025.03.14) |
| Dec 4, 2025 | 2.90% (0.02905) | 85.91th | v4 (v2025.03.14) |
| Dec 1, 2025 | 1.42% (0.01418) | 80.08th | v4 (v2025.03.14) |
| Nov 24, 2025 | 3.53% (0.03527) | 87.16th | v4 (v2025.03.14) |
| Nov 4, 2025 | 2.32% (0.02323) | 84.25th | v4 (v2025.03.14) |
| Nov 1, 2025 | 1.01% (0.01015) | 76.57th | v4 (v2025.03.14) |
| Oct 4, 2025 | 2.32% (0.02323) | 84.23th | v4 (v2025.03.14) |
| Oct 1, 2025 | 1.01% (0.01015) | 76.47th | v4 (v2025.03.14) |
| Sep 4, 2025 | 2.35% (0.02354) | 84.33th | v4 (v2025.03.14) |
| Sep 1, 2025 | 1.03% (0.01028) | 76.53th | v4 (v2025.03.14) |
| Aug 4, 2025 | 2.35% (0.02354) | 84.28th | v4 (v2025.03.14) |
| Aug 1, 2025 | 1.03% (0.01028) | 76.50th | v4 (v2025.03.14) |
| Jul 4, 2025 | 2.07% (0.02070) | 83.15th | v4 (v2025.03.14) |
| Jul 1, 2025 | 0.90% (0.00902) | 74.78th | v4 (v2025.03.14) |
| Jun 4, 2025 | 2.07% (0.02070) | 83.04th | v4 (v2025.03.14) |
| Jun 1, 2025 | 0.90% (0.00902) | 74.66th | v4 (v2025.03.14) |
| May 4, 2025 | 2.07% (0.02070) | 82.95th | v4 (v2025.03.14) |
| May 1, 2025 | 0.90% (0.00902) | 74.54th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.07% (0.02070) | 82.34th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.09% (0.04091) | 80.64th | v4 (v2025.03.14) |
| Mar 24, 2025 | 2.07% (0.02070) | 82.33th | v4 (v2025.03.14) |
| Mar 23, 2025 | 4.09% (0.04091) | 86.44th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.07% (0.02070) | 82.74th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.09% (0.00090) | 40.32th | v3 (v2023.03.01) |
| May 8, 2023 | 0.09% (0.00090) | 37.16th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.12% (0.00123) | 44.89th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.23% (0.01232) | 67.28th | v2 (v2022.01.01) |
| Dec 23, 2022 | 1.23% (0.01232) | 66.86th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.23% (0.01232) | 64.85th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.23% (0.01232) | 41.02th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.08% (0.02080) | 50.39th | v1 |
| Jan 6, 2022 | 2.08% (0.02080) | 49.89th | v1 |
| Sep 1, 2021 | 2.08% (0.02080) | 77.32th | v1 |
| Apr 14, 2021 | 2.08% (0.02080) | 0.00th | v1 |
References (7)
- http://www.securityfocus.com/bid/102024 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://codex.wordpress.org/Version_4.9.1 x_refsource_MISCPatchRelease NotesVendor Advisory
- https://github.com/WordPress/WordPress/commit/67d03a98c2cae5f41843c897f206adde299b0509 x_refsource_MISCPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2017/12/msg00019.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://wordpress.org/news/2017/11/wordpress-4-9-1-security-and-maintenance-release/ x_refsource_MISCRelease NotesVendor Advisory
- https://wpvulndb.com/vulnerabilities/8966 x_refsource_MISCThird Party AdvisoryVDB Entry
- https://www.debian.org/security/2018/dsa-4090 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/102024 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://codex.wordpress.org/Version_4.9.1 | x_refsource_MISCPatchRelease NotesVendor Advisory | |
| https://github.com/WordPress/WordPress/commit/67d03a98c2cae5f41843c897f206adde299b0509 | x_refsource_MISCPatchThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2017/12/msg00019.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://wordpress.org/news/2017/11/wordpress-4-9-1-security-and-maintenance-release/ | x_refsource_MISCRelease NotesVendor Advisory | |
| https://wpvulndb.com/vulnerabilities/8966 | x_refsource_MISCThird Party AdvisoryVDB Entry | |
| https://www.debian.org/security/2018/dsa-4090 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.