CVE-2008-6840: Multiple PHP remote file inclusion vulnerabilities in V-webmail 1.6.4 allow remote attackers to execute arbitr

This month

MEDIUM 6.8DOWNGRADE

CVE-2008-6840 is a medium-severity flaw (CVSS 6.8) affecting v-webmail. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple PHP remote file inclusion vulnerabilities in V-webmail 1.6.4 allow remote attackers to execute arbitrary PHP code via a URL in the (1) CONFIG[pear_dir] parameter to (a) Mail/RFC822.php, (b) Net/Socket.php, (c) XML/Parser.php, (d) XML/Tree.php, (e) Mail/mimeDecode.php, (f) Console/Getopt.php, (g) System.php, (h) Log.php, and (i) File.php in includes/pear/; the CONFIG[pear_dir] parameter to (j) includes/prepend.php, and (k) includes/cached

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-94
Published	2009-07-01
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: christof bruyland

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

Am I affected?

Timeline

2009-07-01 13:00 UTCPublished CVE record published
2026-06-16 23:03 UTCUpdated Record last modified

christof bruyland v-webmail DOWNGRADE

Affected: 1.6.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.6.4

1. Check installed version

apt-cache policy v-webmail || rpm -q v-webmail || v-webmail --version

2. No fixed release: DOWNGRADE to a release before 1.6.4 (Debian / Ubuntu)

apt-cache madison v-webmail sudo apt install v-webmail=<VERSION_BEFORE_1.6.4> sudo apt-mark hold v-webmail

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

dnf --showduplicates list v-webmail sudo dnf downgrade v-webmail-<VERSION_BEFORE_1.6.4> sudo dnf versionlock add v-webmail

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: V-Webmail 1.6.4 - '/includes/cachedConfig.php?CONFIG[pear_dir]' Remote File Inclusion
Exploit-DB: V-Webmail 1.6.4 - '/includes/email.list.search.php?CONFIG[includes]' Remote File Inclusion
Exploit-DB: V-Webmail 1.6.4 - '/includes/pear/Console/Getopt.php?CONFIG[pear_dir]' Remote File Inclusion
Exploit-DB: V-Webmail 1.6.4 - '/includes/pear/File.php?CONFIG[pear_dir]' Remote File Inclusion
Exploit-DB: V-Webmail 1.6.4 - '/includes/pear/Log.php?CONFIG[pear_dir]' Remote File Inclusion
Exploit-DB: V-Webmail 1.6.4 - '/includes/pear/Mail/mimeDecode.php?CONFIG[pear_dir]' Remote File Inclusion
Exploit-DB: V-Webmail 1.6.4 - '/includes/pear/Mail/RFC822.php?CONFIG[pear_dir]' Remote File Inclusion
Exploit-DB: V-Webmail 1.6.4 - '/includes/pear/Net/Socket.php?CONFIG[pear_dir]' Remote File Inclusion

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-2008-6840?

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

Is CVE-2008-6840 being exploited?

CVE-2008-6840 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-2008-6840 affect?

CVE-2008-6840 affects v-webmail. Severity is medium (CVSS 6.8). Multiple PHP remote file inclusion vulnerabilities in V-webmail 1.6.4 allow remote attackers to execute arbitrary PHP code via a URL in the (1) CONFIG[pear_dir] parameter to (a) Mail/RFC822.php, (b) Net/Socket.php, (c) XML/Parser.php, (d) X

How urgent is CVE-2008-6840?

Priority 49/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2008-3063 HIGH 7.5 DOWNGRADE SQL injection vulnerability in login.php in V-webmail 1.5.0 might allow remote attackers to execute arbitrary
CVE-2008-3061 MEDIUM 4.3 DOWNGRADE Open redirect vulnerability in redirect.php in V-webmail 1.5.0 allows remote attackers to redirect users to ar
CVE-2008-3060 MEDIUM 5.0 DOWNGRADE V-webmail 1.5.0 allows remote attackers to obtain sensitive information via (1) malformed input in the login p

References

← Back to latest CVEs