CVE-2008-5855: myPHPscripts Login Session 2.0 stores sensitive information under the web root with insufficient access contro

Q: How do I fix CVE-2008-5855?

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

This month

MEDIUM 5.0DOWNGRADE

CVE-2008-5855 is a medium-severity flaw (CVSS 5.0) affecting login session. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

myPHPscripts Login Session 2.0 stores sensitive information under the web root with insufficient access control, which allows remote attackers to discover usernames, e-mail addresses, and password hashes via a direct request for users.txt.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.6% (top 15%)
CISA exploited list	No
Weakness	CWE-264
Published	2009-01-06
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: myphpscripts

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

Am I affected?

Timeline

2009-01-06 17:30 UTCPublished CVE record published
2026-06-16 23:01 UTCUpdated Record last modified

myphpscripts login session DOWNGRADE

Affected: 2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

apt-cache policy login-session || rpm -q login-session || login-session --version

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison login-session sudo apt install login-session=<VERSION_BEFORE_2.0> sudo apt-mark hold login-session

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

dnf --showduplicates list login-session sudo dnf downgrade login-session-<VERSION_BEFORE_2.0> sudo dnf versionlock add login-session

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: myPHPscripts Login Session 2.0 - Cross-Site Scripting / Database Disclosure

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-2008-5855?

Is CVE-2008-5855 being exploited?

CVE-2008-5855 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-2008-5855 affect?

CVE-2008-5855 affects login session. Severity is medium (CVSS 5.0). myPHPscripts Login Session 2.0 stores sensitive information under the web root with insufficient access control, which allows remote attackers to discover usernames, e-mail addresses, and password hashes via a direct request for users.txt.

How urgent is CVE-2008-5855?

Priority 44/100. Public exploit reference

Related CVEs

CVE-2008-5854 MEDIUM 4.3 DOWNGRADE Multiple cross-site scripting (XSS) vulnerabilities in login.php in myPHPscripts Login Session 2.0 allow remot

References

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