CVE-2023-49967

HIGHNVD 7.57.5—Elevated

7.5

Typecho v1.2.1 was discovered to be vulnerable to an XML Quadratic Blowup attack via the component /index.php/action/xmlrpc.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 54.4%
KEV: Not listed

Published

December 7, 2023

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://github.com/typecho/typecho/issues/1648
af854a3a-2127-422b-91ae-364da2661108https://github.com/typecho/typecho/issues/1648

Weakness Classification(1)

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

CWE-776Improper Restriction of Recursive Entity References (XML Entity Expansion)

Data Freshness Timeline

(refreshed 10× in last 7d / 19× 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.

2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 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 13:44 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 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-24 12:36 UTCEG score recompute
2026-05-24 12:36 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2023-49967?

CVE-2023-49967 is a high vulnerability published on December 7, 2023. Typecho v1.2.1 was discovered to be vulnerable to an XML Quadratic Blowup attack via the component /index.php/action/xmlrpc.

When was CVE-2023-49967 disclosed?

CVE-2023-49967 was first published in the National Vulnerability Database on December 7, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-49967 actively exploited?

CVE-2023-49967 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 54.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-49967?

CVE-2023-49967 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2023-49967?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-49967, 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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CVE-2023-49967

📅 Published

🔄 Last Modified

🔗 References (2)