CVE-2015-6528: Multiple cross-site scripting (XSS) vulnerabilities in install_classic.php in Coppermine Photo Gallery (CPG) 1

Routine

MEDIUM 4.3DOWNGRADE

CVE-2015-6528 is a medium-severity flaw (CVSS 4.3) affecting coppermine photo gallery. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in install_classic.php in Coppermine Photo Gallery (CPG) 1.5.36 allow remote attackers to inject arbitrary web script or HTML via the (1) admin_username, (2) admin_password, (3) admin_email, (4) dbserver, (5) dbname, (6) dbuser, (7) dbpass, (8) table_prefix, or (9) impath parameter.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
Weakness	CWE-79
Published	2015-08-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: coppermine-gallery

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2015-08-20 20:59 UTCPublished CVE record published
2026-06-17 00:31 UTCUpdated Record last modified

coppermine-gallery coppermine photo gallery DOWNGRADE

Affected: 1.5.36

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.5.36

1. Check installed version

apt-cache policy coppermine-photo-gallery || rpm -q coppermine-photo-gallery || coppermine-photo-gallery --version

2. No fixed release: DOWNGRADE to a release before 1.5.36 (Debian / Ubuntu)

apt-cache madison coppermine-photo-gallery sudo apt install coppermine-photo-gallery=<VERSION_BEFORE_1.5.36> sudo apt-mark hold coppermine-photo-gallery

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list coppermine-photo-gallery sudo dnf downgrade coppermine-photo-gallery-<VERSION_BEFORE_1.5.36> sudo dnf versionlock add coppermine-photo-gallery

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2015-6528?

coppermine photo gallery: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2015-6528 being exploited?

CVE-2015-6528 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2015-6528 affect?

CVE-2015-6528 affects coppermine photo gallery. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in install_classic.php in Coppermine Photo Gallery (CPG) 1.5.36 allow remote attackers to inject arbitrary web script or HTML via the (1) admin_username, (2) admin_password, (3) admin_emai

How urgent is CVE-2015-6528?

Priority 39/100. Public exploit reference

Software pages

PHP vulnerabilities

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References

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