CVE-2001-1370: prepend.php3 in PHPLib before 7.2d, when register_globals is enabled for PHP, allows remote attackers to execu

This week

HIGH 10.0DOWNGRADE

CVE-2001-1370 is a high-severity flaw (CVSS 10.0) affecting phplib. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

prepend.php3 in PHPLib before 7.2d, when register_globals is enabled for PHP, allows remote attackers to execute arbitrary scripts via an HTTP request that modifies $_PHPLIB[libdir] to point to malicious code on another server, as seen in Horde 1.2.5 and earlier, IMP before 2.2.6, and other packages that use PHPLib.

Why this priority

Critical severity
EPSS top 3%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	17.2% (top 3%)
CISA exploited list	No
Published	2001-07-21
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: phplib team

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2001-07-21 04:00 UTCPublished CVE record published
2026-06-16 21:56 UTCUpdated Record last modified

phplib team phplib DOWNGRADE

Affected: 7.2 · 7.2.1 · 7.2b · 7.2c

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 7.2 (Debian / Ubuntu)

apt-cache madison phplib sudo apt install phplib=<VERSION_BEFORE_7.2> sudo apt-mark hold phplib

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

dnf --showduplicates list phplib sudo dnf downgrade phplib-<VERSION_BEFORE_7.2> sudo dnf versionlock add phplib

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: PHPLib Team PHPLIB 7.2 - Remote Script Execution

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-2001-1370?

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

Is CVE-2001-1370 being exploited?

CVE-2001-1370 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-2001-1370 affect?

CVE-2001-1370 affects phplib. Severity is high (CVSS 10.0). prepend.php3 in PHPLib before 7.2d, when register_globals is enabled for PHP, allows remote attackers to execute arbitrary scripts via an HTTP request that modifies $_PHPLIB[libdir] to point to malicious code on another server, as seen in H

How urgent is CVE-2001-1370?

Priority 64/100. Critical severity; EPSS top 3%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2006-2826 HIGH 7.5 DOWNGRADE SQL injection vulnerability in sessions.inc in PHP Base Library (PHPLib) before 7.4a allows remote attackers t
CVE-2006-0887 HIGH 7.5 DOWNGRADE Eval injection vulnerability in sessions.inc in PHP Base Library (PHPLib) before 7.4a, when index.php3 from th

References

← Back to latest CVEs