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Vulnerability record · CVE-2023-27757 · published 15 March 2023

CVE-2023-27757: Perfreeblog unrestricted file upload vulnerability

Perfree · Perfreeblog

An arbitrary file upload vulnerability in the /admin/user/uploadImg component of PerfreeBlog v3.1.1 allows attackers to execute arbitrary code via a crafted JPG file.

9.8 CVSS 3.1 Critical EPSS 0.94% · top 40.8% CWE-434 · Unrestricted file upload
9.8CVSS 3.1 base score
0.94%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

An arbitrary file upload vulnerability in the /admin/user/uploadImg component of PerfreeBlog v3.1.1 allows attackers to execute arbitrary code via a crafted JPG file.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/perfree/PerfreeBlog/issues/13 ExploitIssue Tracking
https://github.com/perfree/PerfreeBlog/issues/13 ExploitIssue Tracking

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-30333Perfreeblog unrestricted file upload vulnerabilityAn arbitrary file upload vulnerability in the component /admin/ThemeController.java of PerfreeBlog v3.1.2 allows attackers to execute arbitrary code …EPSS 0.94%8.8CVE-2025-29281Perfreeblog code injection vulnerabilityIn PerfreeBlog version 4.0.11, regular users can exploit the arbitrary file upload vulnerability in the attach component to upload arbitrary files an…EPSS 0.75%7.6CVE-2025-60731Perfreeblog unrestricted file upload vulnerabilityPerfreeBlog v4.0.11 has a File Upload vulnerability in the installTheme functionEPSS 0.27%7.6CVE-2025-60735Perfreeblog unrestricted file upload vulnerabilityPerfreeBlog v4.0.11 has a File Upload vulnerability in the installPlugin functionEPSS 0.27%7.6CVE-2025-60730Perfreeblog vulnerabilityPerfreeBlog v4.0.11 has an arbitrary file deletion vulnerability in the unInstallTheme functionEPSS 0.29%7.5CVE-2025-29420Perfreeblog path traversal vulnerabilityPerfreeBlog v4.0.11 has a directory traversal vulnerability in the getThemeFilesByName function.EPSS 0.91%7.5CVE-2025-29421Perfreeblog improper access control vulnerabilityPerfreeBlog v4.0.11 has an arbitrary file read vulnerability in the getThemeFileContent function.EPSS 0.36%7.2CVE-2023-40825Perfreeblog unrestricted file upload vulnerabilityAn issue in Perfree PerfreeBlog v.3.1.2 allows a remote attacker to execute arbitrary code via crafted plugin listed in admin/plugin/access/list.EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2023-27757), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.