How severe is CVE-2022-24123?

CVE-2022-24123 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-2022-24123 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-24123?

CVE-2022-24123 affects Marktext. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-24123?

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.

When was CVE-2022-24123 published?

CVE-2022-24123 was published on 2022-01-29 and last updated on 2026-06-17.

CVE-2022-24123

CVE-2022-24123 is a critical-severity vulnerability in Marktext 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)
CVSS v2: 6.8
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Marktext
Published: 2022-01-29
Last modified: 2026-06-17

Description

MarkText through 0.16.3 does not sanitize the input of a mermaid block before rendering. This could lead to Remote Code Execution via a .md file containing a mutation Cross-Site Scripting (XSS) payload.

Frequently asked questions

What is CVE-2022-24123?: MarkText through 0.16.3 does not sanitize the input of a mermaid block before rendering. This could lead to Remote Code Execution via a .md file containing a mutation Cross-Site Scripting (XSS) payload.
How severe is CVE-2022-24123?: CVE-2022-24123 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-2022-24123 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-24123?: CVE-2022-24123 affects Marktext. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-24123?: 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.
When was CVE-2022-24123 published?: CVE-2022-24123 was published on 2022-01-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:marktext:marktext:*:*:*:*:*:*:*:*

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