How severe is CVE-2024-35540?

CVE-2024-35540 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-35540 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-35540?

CVE-2024-35540 primarily affects Typecho. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-35540?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2024-35540 have an EU (EUVD) identifier?

Yes. CVE-2024-35540 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-35357.

When was CVE-2024-35540 published?

CVE-2024-35540 was published on 2024-08-20 and last updated on 2026-06-17.

CVE-2024-35540

CVE-2024-35540 is a critical-severity vulnerability in Typecho with a CVSS 3.x base score of 9.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Critical (CVSS 3.x base score 9.0)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-35357
Weakness: CWE-79
Affected product: Typecho
Published: 2024-08-20
Last modified: 2026-06-17

Description

A stored cross-site scripting (XSS) vulnerability in Typecho v1.3.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.

Frequently asked questions

What is CVE-2024-35540?: A stored cross-site scripting (XSS) vulnerability in Typecho v1.3.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.
How severe is CVE-2024-35540?: CVE-2024-35540 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-35540 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-35540?: CVE-2024-35540 primarily affects Typecho. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-35540?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2024-35540 have an EU (EUVD) identifier?: Yes. CVE-2024-35540 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-35357.
When was CVE-2024-35540 published?: CVE-2024-35540 was published on 2024-08-20 and last updated on 2026-06-17.

References

https://cyberaz0r.info/2024/08/typecho-multiple-vulnerabilities/

Affected products (2)

cpe:2.3:a:typecho:typecho:*:*:*:*:*:*:*:*
cpe:2.3:a:typecho:typecho:1.3.0:alpha:*:*:*:*:*:*

More vulnerabilities in Typecho

CVE-2023-24114 — Critical (CVSS 9.8): typecho 1.1/17.10.30 was discovered to contain a remote code execution (RCE) vulnerability via install.php.
CVE-2018-18753 — Critical (CVSS 9.8): Typecho V1.1 allows remote attackers to send shell commands via base64-encoded serialized data, as demonstrated by SSRF.
CVE-2023-36299 — High (CVSS 8.8): A File Upload vulnerability in typecho v.1.2.1 allows a remote attacker to execute arbitrary code via the upload and…
CVE-2023-49967 — High (CVSS 7.5): Typecho v1.2.1 was discovered to be vulnerable to an XML Quadratic Blowup attack via the component…
CVE-2024-35539 — Medium (CVSS 6.5): Typecho v1.3.0 was discovered to contain a race condition vulnerability in the post commenting function. This…
CVE-2024-57369 — Medium (CVSS 6.4): Clickjacking vulnerability in typecho v1.2.1.

All CVEs affecting Typecho →

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