How severe is CVE-2023-4820?

CVE-2023-4820 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-2023-4820 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4820?

CVE-2023-4820 affects Blubrry Powerpress. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-4820?

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

When was CVE-2023-4820 published?

CVE-2023-4820 was published on 2023-10-16 and last updated on 2026-06-17.

CVE-2023-4820

CVE-2023-4820 is a medium-severity vulnerability in Blubrry Powerpress 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.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Blubrry Powerpress
Published: 2023-10-16
Last modified: 2026-06-17

Description

The PowerPress Podcasting plugin by Blubrry WordPress plugin before 11.0.12 does not sanitize and escape the media url field in posts, which could allow users with privileges as low as contributor to inject arbitrary web scripts that could target a site admin or superadmin.

Frequently asked questions

What is CVE-2023-4820?: The PowerPress Podcasting plugin by Blubrry WordPress plugin before 11.0.12 does not sanitize and escape the media url field in posts, which could allow users with privileges as low as contributor to inject arbitrary web scripts that could target a site admin or superadmin.
How severe is CVE-2023-4820?: CVE-2023-4820 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-2023-4820 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4820?: CVE-2023-4820 affects Blubrry Powerpress. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-4820?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-4820 published?: CVE-2023-4820 was published on 2023-10-16 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/e866a214-a142-43c7-b93d-ff2301a3e432

Affected products (1)

cpe:2.3:a:blubrry:powerpress:*:*:*:*:*:wordpress:*:*

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