CVE-2026-124635: Access Control Flaw (CVSS 4.7)

Description

A vulnerability was identified in kevquirk PureBlog up to 3.7.2. Impacted is an unknown function of the file admin/upload-image.php of the component Admin Image Upload Endpoint. Such manipulation leads to unrestricted upload. The attack may be launched remotely. Upgrading to version 3.7.3 is recommended to address this issue. The name of the patch is 71f5b0de2ecb2bb2934048ed40e1155c107484e3. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

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CVSS v3.1 Score

4.7

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

EPSS — Exploit Prediction

0.0024

Probability of exploitation

0.15%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-284 CWE-284

CWE-434 Unrestricted Upload

References

Other References

https://github.com/kevquirk/pureblog/ https://github.com/kevquirk/pureblog/commit/71f5b0de2ecb2bb2934048ed40e1155c107484e3 https://github.com/kevquirk/pureblog/issues/86 https://github.com/kevquirk/pureblog/releases/tag/v3.7.3 https://vuldb.com/cve/CVE-2026-124635 https://vuldb.com/submit/1040557 https://vuldb.com/vuln/433065 https://vuldb.com/vuln/433065/cti

Frequently Asked Questions

What is CVE-2026-124635? +

A vulnerability was identified in kevquirk PureBlog up to 3.7.2. Impacted is an unknown function of the file admin/upload-image.php of the component Admin Image Upload Endpoint. Such manipulation leads to unrestricted upload. The attack may be launched remotely. Upgrading to version 3.7.3 is recommended to address this issue. The name of the patch is 71f5b0de2ecb2bb2934048ed40e1155c107484e3. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product. It has a CVSS v3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2026-124635? +

CVE-2026-124635 has a CVSS v3.1 score of 4.7 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0024, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-124635? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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