How severe is CVE-2023-22857?

CVE-2023-22857 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2023-22857 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-22857?

CVE-2023-22857 affects Blogengine Blogengine.net. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-22857?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-22857 published?

CVE-2023-22857 was published on 2023-03-06 and last updated on 2026-06-17.

CVE-2023-22857

CVE-2023-22857 is a high-severity vulnerability in Blogengine Blogengine.net with a CVSS 3.x base score of 8.5. 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: High (CVSS 3.x base score 8.5)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Blogengine Blogengine.net
Published: 2023-03-06
Last modified: 2026-06-17

Description

A stored Cross-site Scripting (XSS) vulnerability in BlogEngine.NET 3.3.8.0, allows injection of arbitrary JavaScript in the security context of a blog visitor through an injection of a malicious payload into a blog post.

Frequently asked questions

What is CVE-2023-22857?: A stored Cross-site Scripting (XSS) vulnerability in BlogEngine.NET 3.3.8.0, allows injection of arbitrary JavaScript in the security context of a blog visitor through an injection of a malicious payload into a blog post.
How severe is CVE-2023-22857?: CVE-2023-22857 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2023-22857 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-22857?: CVE-2023-22857 affects Blogengine Blogengine.net. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-22857?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-22857 published?: CVE-2023-22857 was published on 2023-03-06 and last updated on 2026-06-17.

References

https://www.themissinglink.com.au/security-advisories/cve-2023-22857

Affected products (1)

cpe:2.3:a:blogengine:blogengine.net:3.3.8.0:*:*:*:*:*:*:*

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