How severe is CVE-2021-24342?

CVE-2021-24342 has a CVSS 3.x base score of 6.1, 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-2021-24342 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-2021-24342?

CVE-2021-24342 affects Jnews. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24342?

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

When was CVE-2021-24342 published?

CVE-2021-24342 was published on 2021-06-07 and last updated on 2026-06-17.

CVE-2021-24342

CVE-2021-24342 is a medium-severity vulnerability in Jnews with a CVSS 3.x base score of 6.1. 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 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Jnews
Published: 2021-06-07
Last modified: 2026-06-17

Description

The JNews WordPress theme before 8.0.6 did not sanitise the cat_id parameter in the POST request /?ajax-request=jnews (with action=jnews_build_mega_category_*), leading to a Reflected Cross-Site Scripting (XSS) issue.

Frequently asked questions

What is CVE-2021-24342?: The JNews WordPress theme before 8.0.6 did not sanitise the cat_id parameter in the POST request /?ajax-request=jnews (with action=jnews_build_mega_category_*), leading to a Reflected Cross-Site Scripting (XSS) issue.
How severe is CVE-2021-24342?: CVE-2021-24342 has a CVSS 3.x base score of 6.1, 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-2021-24342 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-2021-24342?: CVE-2021-24342 affects Jnews. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24342?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-24342 published?: CVE-2021-24342 was published on 2021-06-07 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/415ca763-fe65-48cb-acd3-b375a400217e

Affected products (1)

cpe:2.3:a:jnews:jnews:*:*:*:*:*:wordpress:*:*

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