CVE-2024-46494: A cross-site scripting (XSS) vulnerability in Typecho v1.2.1 allows attackers to execute arbitrary web scripts

Routine

MEDIUM 5.4DOWNGRADE

CVE-2024-46494 is a medium-severity flaw (CVSS 5.4) affecting typecho. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A cross-site scripting (XSS) vulnerability in Typecho v1.2.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into Name parameter under a comment for an Article.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 81%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-04-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: typecho

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-04-07 20:15 UTCPublished CVE record published
2026-06-17 07:55 UTCUpdated Record last modified

typecho typecho DOWNGRADE

Affected: 1.2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2.1

1. Check installed version

apt-cache policy typecho || rpm -q typecho || typecho --version

2. No fixed release: DOWNGRADE to a release before 1.2.1 (Debian / Ubuntu)

apt-cache madison typecho sudo apt install typecho=<VERSION_BEFORE_1.2.1> sudo apt-mark hold typecho

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list typecho sudo dnf downgrade typecho-<VERSION_BEFORE_1.2.1> sudo dnf versionlock add typecho

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-46494?

typecho: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-46494 being exploited?

CVE-2024-46494 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-46494 affect?

CVE-2024-46494 affects typecho. Severity is medium (CVSS 5.4). A cross-site scripting (XSS) vulnerability in Typecho v1.2.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into Name parameter under a comment for an Article.

How urgent is CVE-2024-46494?

Priority 29/100. Public exploit reference

Related CVEs

CVE-2024-57369 MEDIUM 6.4 DOWNGRADE Clickjacking vulnerability in typecho v1.2.1.
CVE-2024-35540 CRITICAL 9.0 UPGRADE A stored cross-site scripting (XSS) vulnerability in Typecho v1.3.0 allows attackers to execute arbitrary web
CVE-2024-35539 MEDIUM 6.5 DOWNGRADE Typecho v1.3.0 was discovered to contain a race condition vulnerability in the post commenting function
CVE-2024-35538 MEDIUM 5.3 DOWNGRADE Typecho v1.3.0 was discovered to contain a Client IP Spoofing vulnerability, which allows attackers to falsify

References

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