8.8

CVE-2023-53868: Coppermine Gallery 1.6.25 Remote Code Execution via Plugin Upload

Analyzed
Published 15-12-2025Last modified 07-04-2026

Vulnerability summary

CVE-2023-53868 is a high (CVSS 8.8) vulnerability in coppermine-gallery coppermine_photo_gallery. EPSS estimates a 0.85% chance of exploitation in the next 30 days, higher than 57.7% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
45/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
0.85%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1exploit-database

Timeline

  1. 15-12-2025
    PublishedVulnerability first disclosed.
  2. 07-04-2026
    Last modifiedVulnerability information updated.

Description

Coppermine Gallery 1.6.25 contains a remote code execution vulnerability that allows authenticated attackers to upload malicious PHP files through the plugin manager. Attackers can upload a zipped PHP file with system commands to the plugin directory and execute arbitrary code by accessing the uploaded plugin script.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.85%

Chance of exploitation in the next 30 days

Percentile

58%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.85% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • exploit-databasephpUnverified

    Coppermine Gallery 1.6.25 - RCE

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Coppermine1 product
Coppermine-gallery1 product

2 vendors · 2 products

References

3 links