CVE-2023-51700

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 58% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.8Exploit: NoneExposed: 0

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

Unofficial Mobile BankID Integration for WordPress lets users employ Mobile BankID to authenticate themselves on your WordPress site. Prior to 1.0.1, WP-Mobile-BankID-Integration is affected by a vulnerability classified as a Deserialization of Untrusted Data vulnerability, specifically impacting scenarios where an attacker can manipulate the database. If unauthorized actors gain access to the database, they could exploit this vulnerability to execute object injection attacks. This could lead to unauthorized code execution, data manipulation, or data exfiltration within the WordPress environment. Users of the plugin should upgrade to version 1.0.1 (or later), where the serialization and deserialization of OrderResponse objects have been switched out to an array stored as JSON. A possible workaround for users unable to upgrade immediately is to enforce stricter access controls on the database, ensuring that only trusted and authorized entities can modify data. Additionally, implementing monitoring tools to detect unusual database activities could help identify and mitigate potential exploitation attempts.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
42.5%
KEV
Not listed

Published

December 27, 2023

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Jun 27, 2026
Patch available. Sources: github_commit, github.
github Patch Available

WordPress Database Deserialization: Potential for Object Injection · Advisory · jamieblomerus/WP-Mobile-BankID-Integration · GitHub

https://github.com/jamieblomerus/WP-Mobile-BankID-Integration/security/advisories/GHSA-pqwp-qrp7-grg4
github_commit Patch Available

commit 8251c6298a99 (jamieblomerus/WP-Mobile-BankID-Integration)

Patch available: jamieblomerus/WP-Mobile-BankID-Integration 1.0.1 (contains commit 8251c6298a99)

https://github.com/jamieblomerus/WP-Mobile-BankID-Integration/commit/8251c6298a995ccf4f26c43f03ed11a275dd0c5f

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 48× 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.

Showing the most recent 100 of 105 total refreshes for this CVE.

  1. 2026-07-23 14:16 UTCEPSS rescore
  2. 2026-07-23 02:29 UTCEG score recompute
  3. 2026-07-22 23:15 UTCEG score recompute▲ 3.40
  4. 2026-07-22 14:06 UTCEPSS rescore
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  1. 2026-07-08 15:13 UTCEPSS rescore
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  24. 2026-06-24 06:36 UTCNVD updateCVSS v3 → 9.8 · severity → CRITICAL
  25. 2026-06-23 21:31 UTCEPSS rescore
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  48. 2026-06-09 11:14 UTCOSV refresh
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Frequently asked(5)

What is CVE-2023-51700?
CVE-2023-51700 is a critical vulnerability published on December 27, 2023. Unofficial Mobile BankID Integration for WordPress lets users employ Mobile BankID to authenticate themselves on your WordPress site. Prior to 1.0.1, WP-Mobile-BankID-Integration is affected by a vulnerability classified as a Deserialization of Untrusted Data vulnerability, specifically impacting…
When was CVE-2023-51700 disclosed?
CVE-2023-51700 was first published in the National Vulnerability Database on December 27, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-51700 actively exploited?
CVE-2023-51700 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 42.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-51700?
CVE-2023-51700 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-51700?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-51700, 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.

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