CVE-2023-1549

HIGHNVD 7.27.2—Elevated

7.2

The Ad Inserter WordPress plugin before 2.7.27 unserializes user input provided via the settings, which could allow high privilege users such as admin to perform PHP Object Injection when a suitable gadget is present

CVSS v3: 7.2
EG Score: 7.2(medium)
EPSS: 91.2%
KEV: Not listed

Published

May 15, 2023

Last Modified

January 24, 2025

References (2)

contact@wpscanhttps://wpscan.com/vulnerability/c94b3a68-673b-44d7-9251-f3590cc5ee9e
af854a3a-2127-422b-91ae-364da2661108https://wpscan.com/vulnerability/c94b3a68-673b-44d7-9251-f3590cc5ee9e

Weakness Classification(1)

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

CWE-502Deserialization of Untrusted Data

Data Freshness Timeline

(refreshed 10× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 13:11 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2023-1549?

CVE-2023-1549 is a high vulnerability published on May 15, 2023. The Ad Inserter WordPress plugin before 2.7.27 unserializes user input provided via the settings, which could allow high privilege users such as admin to perform PHP Object Injection when a suitable gadget is present

When was CVE-2023-1549 disclosed?

CVE-2023-1549 was first published in the National Vulnerability Database on May 15, 2023, with the most recent update on January 24, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-1549 actively exploited?

CVE-2023-1549 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 91.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-1549?

CVE-2023-1549 has a CVSS v3 base score of 7.2 (NVD).

How do I remediate CVE-2023-1549?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-1549, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-1549

Explore →

Is Your Infrastructure Affected by CVE-2023-1549?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2023-1549

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-1549?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)