How severe is CVE-2022-23626?

CVE-2022-23626 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-23626 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-23626?

CVE-2022-23626 affects Blog Project Blog. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-23626?

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-2022-23626 published?

CVE-2022-23626 was published on 2022-02-08 and last updated on 2026-06-17.

CVE-2022-23626

CVE-2022-23626 is a high-severity vulnerability in Blog Project Blog 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-252.

Key facts

Severity: High (CVSS 3.x base score 8.5)
CVSS v2: 6.5
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-252
Affected product: Blog Project Blog
Published: 2022-02-08
Last modified: 2026-06-17

Description

m1k1o/blog is a lightweight self-hosted facebook-styled PHP blog. Errors from functions `imagecreatefrom*` and `image*` have not been checked properly. Although PHP issued warnings and the upload function returned `false`, the original file (that could contain a malicious payload) was kept on the disk. Users are advised to upgrade as soon as possible. There are no known workarounds for this issue.

Frequently asked questions

What is CVE-2022-23626?: m1k1o/blog is a lightweight self-hosted facebook-styled PHP blog. Errors from functions `imagecreatefrom*` and `image*` have not been checked properly. Although PHP issued warnings and the upload function returned `false`, the original file (that could contain a malicious payload) was kept on the disk. Users are advised to upgrade as soon as possible. There are no known workarounds for this issue.
How severe is CVE-2022-23626?: CVE-2022-23626 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-23626 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-23626?: CVE-2022-23626 affects Blog Project Blog. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-23626?: 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-2022-23626 published?: CVE-2022-23626 was published on 2022-02-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:blog_project:blog:*:*:*:*:*:*:*:*

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