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CVE-2023-49967

Typecho v1.2.1 was discovered to be vulnerable to an XML Quadratic Blowup attack via the...

7.5 High

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

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.75%Up 0.7 points since Dec 8, 2023
90%50%10%1%

What each source reports

NVD Score used 7.5

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

Record
CVE-2023-49967
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-776
Updated
2026-11-02
CVE List No score

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

Record
CVE-2023-49967
Updated
2026-11-02
EUVDEUVD-2023-53862 No score

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

Record
EUVD-2023-53862
Updated
2026-11-03
GitHub AdvisoriesGHSA-mx48-cppf-pvxc 7.5

Typecho v1.2.1 was discovered to be vulnerable to an XML Quadratic Blowup attack via the...

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

Record
GHSA-mx48-cppf-pvxc
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-776
Updated
2026-11-02
OSV No score

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

Record
CVE-2023-49967
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-49967 is a high vulnerability (CVSS 7.5) in Typecho, published December 7, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.75%, the 55th percentile. No source names a fixed version.

References

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