How severe is CVE-2018-1999024?

CVE-2018-1999024 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-1999024 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1999024?

CVE-2018-1999024 affects Mathjax. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1999024?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-1999024 published?

CVE-2018-1999024 was published on 2018-07-23 and last updated on 2026-06-17.

CVE-2018-1999024

CVE-2018-1999024 is a medium-severity vulnerability in Mathjax with a CVSS 3.x base score of 5.4. 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: Medium (CVSS 3.x base score 5.4)
CVSS v2: 4.3
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Mathjax
Published: 2018-07-23
Last modified: 2026-06-17

Description

MathJax version prior to version 2.7.4 contains a Cross Site Scripting (XSS) vulnerability in the \unicode{} macro that can result in Potentially untrusted Javascript running within a web browser. This attack appear to be exploitable via The victim must view a page where untrusted content is processed using Mathjax. This vulnerability appears to have been fixed in 2.7.4 and later.

Frequently asked questions

What is CVE-2018-1999024?: MathJax version prior to version 2.7.4 contains a Cross Site Scripting (XSS) vulnerability in the \unicode{} macro that can result in Potentially untrusted Javascript running within a web browser. This attack appear to be exploitable via The victim must view a page where untrusted content is processed using Mathjax. This vulnerability appears to have been fixed in 2.7.4 and later.
How severe is CVE-2018-1999024?: CVE-2018-1999024 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-1999024 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1999024?: CVE-2018-1999024 affects Mathjax. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1999024?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-1999024 published?: CVE-2018-1999024 was published on 2018-07-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mathjax:mathjax:*:*:*:*:*:*:*:*

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