How severe is CVE-2021-24157?

CVE-2021-24157 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-24157 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24157?

CVE-2021-24157 affects Themeisle Orbit Fox. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24157?

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

When was CVE-2021-24157 published?

CVE-2021-24157 was published on 2021-04-05 and last updated on 2026-06-17.

CVE-2021-24157

CVE-2021-24157 is a medium-severity vulnerability in Themeisle Orbit Fox 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: 3.5
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Themeisle Orbit Fox
Published: 2021-04-05
Last modified: 2026-06-17

Description

Orbit Fox by ThemeIsle has a feature to add custom scripts to the header and footer of a page or post. There were no checks to verify that a user had the unfiltered_html capability prior to saving the script tags, thus allowing lower-level users to inject scripts that could potentially be malicious.

Frequently asked questions

What is CVE-2021-24157?: Orbit Fox by ThemeIsle has a feature to add custom scripts to the header and footer of a page or post. There were no checks to verify that a user had the unfiltered_html capability prior to saving the script tags, thus allowing lower-level users to inject scripts that could potentially be malicious.
How severe is CVE-2021-24157?: CVE-2021-24157 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-24157 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24157?: CVE-2021-24157 affects Themeisle Orbit Fox. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24157?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-24157 published?: CVE-2021-24157 was published on 2021-04-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:themeisle:orbit_fox:*:*:*:*:*:wordpress:*:*

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