CVE-2005-1898: The passthrough functionality in phpThumb.php in phpThumb() before 1.5.4 allows remote attackers to read files

Routine

MEDIUM 5.0DOWNGRADE

CVE-2005-1898 is a medium-severity flaw (CVSS 5.0) affecting phpthumb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The passthrough functionality in phpThumb.php in phpThumb() before 1.5.4 allows remote attackers to read files that are not images.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Published	2005-06-09
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: phpthumb

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

Am I affected?

Timeline

2005-06-09 04:00 UTCPublished CVE record published
2026-06-16 22:13 UTCUpdated Record last modified

phpthumb phpthumb DOWNGRADE

Affected: 1.5 · 1.5.1 · 1.5.2 · 1.5.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.5

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.5 (Debian / Ubuntu)

apt-cache madison phpthumb sudo apt install phpthumb=<VERSION_BEFORE_1.5> sudo apt-mark hold phpthumb

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

dnf --showduplicates list phpthumb sudo dnf downgrade phpthumb-<VERSION_BEFORE_1.5> sudo dnf versionlock add phpthumb

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-2005-1898?

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

Is CVE-2005-1898 being exploited?

CVE-2005-1898 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-2005-1898 affect?

CVE-2005-1898 affects phpthumb. Severity is medium (CVSS 5.0). The passthrough functionality in phpThumb.php in phpThumb() before 1.5.4 allows remote attackers to read files that are not images.

How urgent is CVE-2005-1898?

Priority 35/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

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References

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