CVE-2007-2519: Directory traversal vulnerability in the installer in PEAR 1.0 through 1.5.3 allows user-assisted remote attac

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MEDIUM 6.8DOWNGRADE

CVE-2007-2519 is a medium-severity flaw (CVSS 6.8) affecting pear. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in the installer in PEAR 1.0 through 1.5.3 allows user-assisted remote attackers to overwrite arbitrary files via a .. (dot dot) sequence in the (1) install-as attribute in the file element in package.xml 1.0 or the (2) as attribute in the install element in package.xml 2.0. NOTE: it could be argued that this does not cross privilege boundaries in typical installations, since the code being installed could perfo

Why this priority

EPSS top 5%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	7.7% (top 5%)
CISA exploited list	No
Published	2007-05-22
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: php group

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

Am I affected?

Timeline

2007-05-22 19:30 UTCPublished CVE record published
2026-06-16 22:39 UTCUpdated Record last modified

php group pear DOWNGRADE

Affected: 1.0 · 1.0.1 · 1.1 · 1.2 · 1.2.1 · 1.2b1 · 1.2b2 · 1.2b3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison pear sudo apt install pear=<VERSION_BEFORE_1.0> sudo apt-mark hold pear

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

dnf --showduplicates list pear sudo dnf downgrade pear-<VERSION_BEFORE_1.0> sudo dnf versionlock add pear

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: PHP PEAR 1.5.3 - INSTALL-AS Attribute Arbitrary File Overwrite

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-2007-2519?

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

Is CVE-2007-2519 being exploited?

CVE-2007-2519 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-2007-2519 affect?

CVE-2007-2519 affects pear. Severity is medium (CVSS 6.8). Directory traversal vulnerability in the installer in PEAR 1.0 through 1.5.3 allows user-assisted remote attackers to overwrite arbitrary files via a .. (dot dot) sequence in the (1) install-as attribute in the file element in package.xml 1

How urgent is CVE-2007-2519?

Priority 52/100. EPSS top 5%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

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References

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