CVE-2015-6827: Cross-site request forgery (CSRF) vulnerability in Auto-Exchanger 5.1.0 allows remote attackers to hijack the

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MEDIUM 6.8DOWNGRADE

CVE-2015-6827 is a medium-severity flaw (CVSS 6.8) affecting auto-exchanger. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site request forgery (CSRF) vulnerability in Auto-Exchanger 5.1.0 allows remote attackers to hijack the authentication of users for requests that change a password via a request to signup.php.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	2.0% (top 19%)
CISA exploited list	No
Weakness	CWE-352
Published	2015-09-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: auto-exchanger

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

Am I affected?

Timeline

2015-09-11 15:59 UTCPublished CVE record published
2026-06-17 00:31 UTCUpdated Record last modified

auto-exchanger auto-exchanger DOWNGRADE

Affected: 5.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.1.0

1. Check installed version

apt-cache policy auto-exchanger || rpm -q auto-exchanger || auto-exchanger --version

2. No fixed release: DOWNGRADE to a release before 5.1.0 (Debian / Ubuntu)

apt-cache madison auto-exchanger sudo apt install auto-exchanger=<VERSION_BEFORE_5.1.0> sudo apt-mark hold auto-exchanger

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

dnf --showduplicates list auto-exchanger sudo dnf downgrade auto-exchanger-<VERSION_BEFORE_5.1.0> sudo dnf versionlock add auto-exchanger

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Auto-Exchanger 5.1.0 - Cross-Site Request Forgery

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-2015-6827?

auto-exchanger: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2015-6827 being exploited?

CVE-2015-6827 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-2015-6827 affect?

CVE-2015-6827 affects auto-exchanger. Severity is medium (CVSS 6.8). Cross-site request forgery (CSRF) vulnerability in Auto-Exchanger 5.1.0 allows remote attackers to hijack the authentication of users for requests that change a password via a request to signup.php.

How urgent is CVE-2015-6827?

Priority 49/100. Public exploit reference

Software pages

PHP vulnerabilities

References

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