CVE-2018-1000504: Redirection version 2.7.3 contains a ACE via file inclusion vulnerability in Pass-through mode that can result

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HIGH 7.2DOWNGRADE

CVE-2018-1000504 is a high-severity flaw (CVSS 7.2) affecting redirection. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Redirection version 2.7.3 contains a ACE via file inclusion vulnerability in Pass-through mode that can result in allows admins to execute any PHP file in the filesystem. This attack appear to be exploitable via Attacker must be have access to an admin account on the target site. This vulnerability appears to have been fixed in 2.8.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	2.0% (top 19%)
CISA exploited list	No
Weakness	CWE-601
Published	2018-06-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: redirection

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

Am I affected?

Timeline

2018-06-26 16:29 UTCPublished CVE record published
2026-06-17 01:32 UTCUpdated Record last modified

redirection redirection DOWNGRADE

Affected: 2.7.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.7.3

1. Check installed version

apt-cache policy redirection || rpm -q redirection || redirection --version

2. No fixed release: DOWNGRADE to a release before 2.7.3 (Debian / Ubuntu)

apt-cache madison redirection sudo apt install redirection=<VERSION_BEFORE_2.7.3> sudo apt-mark hold redirection

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

dnf --showduplicates list redirection sudo dnf downgrade redirection-<VERSION_BEFORE_2.7.3> sudo dnf versionlock add redirection

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-2018-1000504?

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

Is CVE-2018-1000504 being exploited?

CVE-2018-1000504 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-2018-1000504 affect?

CVE-2018-1000504 affects redirection. Severity is high (CVSS 7.2). Redirection version 2.7.3 contains a ACE via file inclusion vulnerability in Pass-through mode that can result in allows admins to execute any PHP file in the filesystem. This attack appear to be exploitable via Attacker must be have access

How urgent is CVE-2018-1000504?

Priority 50/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

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References

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