Better Search Replace <= 1.4.4 - Unauthenticated PHP Object Injection
Published Feb 5, 2024
9.8
CRITICALCVSS 3.1
EPSS 68.05%
Description
The Better Search Replace plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.4.4 via deserialization of untrusted input. This makes it possible for unauthenticated attackers to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
Affected products
-
- Version 0StatusaffectedConstraints<=1.4.4
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Wpengine | Better Search Replace | unaffected |
|
- < 1.4.5
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (CVE.org) ▾
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Aug 22, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.
Score over time
2024-2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (18 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 68.05% (0.68047) | 99.31th | v5 (v2026.06.15) |
| Jun 15, 2026 | 68.05% (0.68047) | 99.23th | v5 (v2026.06.15) |
| Nov 21, 2025 | 93.29% (0.93295) | 99.80th | v4 (v2025.03.14) |
| Nov 18, 2025 | 90.28% (0.90284) | 99.68th | v4 (v2025.03.14) |
| Oct 17, 2025 | 93.29% (0.93295) | 99.80th | v4 (v2025.03.14) |
| Sep 25, 2025 | 92.02% (0.92024) | 99.69th | v4 (v2025.03.14) |
| Jun 26, 2025 | 70.42% (0.70420) | 98.58th | v4 (v2025.03.14) |
| May 30, 2025 | 65.44% (0.65440) | 98.36th | v4 (v2025.03.14) |
| May 27, 2025 | 71.06% (0.71063) | 98.61th | v4 (v2025.03.14) |
| Apr 15, 2025 | 65.44% (0.65440) | 98.34th | v4 (v2025.03.14) |
| Mar 30, 2025 | 79.42% (0.79415) | 99.02th | v4 (v2025.03.14) |
| Mar 29, 2025 | 82.04% (0.82036) | 98.99th | v4 (v2025.03.14) |
| Mar 19, 2025 | 79.43% (0.79426) | 99.02th | v4 (v2025.03.14) |
| Mar 17, 2025 | 76.59% (0.76590) | 98.89th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.11% (0.00106) | 44.89th | v3 (v2023.03.01) |
| Aug 11, 2024 | 0.11% (0.00106) | 43.76th | v3 (v2023.03.01) |
| Feb 15, 2024 | 1.48% (0.01483) | 86.40th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.06% (0.00057) | 21.06th | v3 (v2023.03.01) |
References (3)
- https://plugins.trac.wordpress.org/browser/better-search-replace/trunk/includes/class-bsr-db.php#L334 Exploit
- https://plugins.trac.wordpress.org/changeset/3023674/better-search-replace/trunk/includes/class-bsr-db.php Patch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/895f2db1-a2ed-4a17-a4f6-cd13ee8f84af?source=cve Third Party Advisory
Change history (0)
No recorded changes yet.