CVE-2023-49967

Name: CVE-2023-49967
Creator: NVD / NIST
Published: 2023-12-07T16:15:07.68+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.76%

Last modified Jun 17, 2026

CVE-2023-49967 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Typecho v1.2.1 was discovered to be vulnerable to an XML Quadratic Blowup attack via the component /index.php/action/xmlrpc.. EPSS estimates a 0.76% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.76%

50.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-776

Affected Software

Vendor	Product	Versions
Typecho	Typecho	1.2.1

References

https://github.com/typecho/typecho/issues/1648Exploit, Issue Tracking, Third Party Advisory
https://github.com/typecho/typecho/issues/1648Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Dec 7, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-49967?

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

How severe is CVE-2023-49967?

CVE-2023-49967 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.76% probability of exploitation in the next 30 days.

How do I fix CVE-2023-49967?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-49967?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST