CVE-2023-6933

HIGHNVD 8.89.8▲
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2024-02-06. NVD baseline CVSS 8.8; sources differ by 1.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
8.8
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 68%
CISA-KEV: Not listedEPSS: 68%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.8
EG Score
9.8(medium)
EG Risk
86(Track)
EG Risk 86/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation68% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
99.3%
KEV
Not listed

Published

February 5, 2024

Last Modified

April 8, 2026

References (6)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 29× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-24 14:16 UTCEPSS rescore
  2. 2026-07-23 02:30 UTCEG score recompute
  3. 2026-07-22 23:17 UTCEG score recompute
  4. 2026-07-22 14:07 UTCEPSS rescore
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  1. 2026-06-28 04:55 UTCEPSS rescore
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  11. 2026-06-18 17:51 UTCEPSS rescore
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  13. 2026-06-15 17:47 UTCEPSS rescore
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  17. 2026-06-12 23:11 UTCEPSS rescore
  18. 2026-06-11 13:59 UTCEPSS rescore
  19. 2026-06-08 14:16 UTCEPSS rescore
  20. 2026-06-08 14:16 UTCEPSS rescore
  21. 2026-06-02 20:12 UTCEPSS rescore
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  23. 2026-05-31 00:15 UTCEPSS rescore
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  25. 2026-05-26 13:43 UTCEPSS rescore
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  27. 2026-05-22 21:16 UTCEPSS rescore
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  30. 2026-05-22 21:16 UTCEPSS rescore
  31. 2026-05-22 21:16 UTCEPSS rescore
  32. 2026-05-22 04:56 UTCEG score recompute
  33. 2026-05-22 04:55 UTCGHSA enrichment
  34. 2026-05-21 19:06 UTCOSV refresh
  35. 2026-05-20 22:37 UTCEPSS rescore
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Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Nucleihttp/cves/2023/CVE-2023-6933.yaml
    First seen Jan 1, 2023

    Better Search Replace < 1.4.5 - PHP Object Injection

    Open source ↗

Frequently asked(5)

What is CVE-2023-6933?
CVE-2023-6933 is a high vulnerability published on February 5, 2024. 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…
When was CVE-2023-6933 disclosed?
CVE-2023-6933 was first published in the National Vulnerability Database on February 5, 2024, with the most recent update on April 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-6933 actively exploited?
CVE-2023-6933 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-6933?
CVE-2023-6933 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8.
How do I remediate CVE-2023-6933?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-6933, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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