CVE-2006-4881: Multiple cross-site scripting (XSS) vulnerabilities in David Bennett PHP-Post (PHPp) 1.0 and earlier allow rem

Q: How do I fix CVE-2006-4881?

php-post: upgrade to newer than 1.0. Exact commands for each OS are on this page.

Q: Is CVE-2006-4881 being exploited?

CVE-2006-4881 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2006-4881 affect?

CVE-2006-4881 affects php-post. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in David Bennett PHP-Post (PHPp) 1.0 and earlier allow remote attackers to inject arbitrary web script or HTML via (1) the replyuser parameter in (a) pm.php; (2) the txt_jumpto parameter i

Q: How urgent is CVE-2006-4881?

Priority 43/100. EPSS top 8%: very likely to be exploited; Public exploit reference

This month

MEDIUM 4.3UPGRADE

CVE-2006-4881 is a medium-severity flaw (CVSS 4.3) affecting php-post. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in David Bennett PHP-Post (PHPp) 1.0 and earlier allow remote attackers to inject arbitrary web script or HTML via (1) the replyuser parameter in (a) pm.php; (2) the txt_jumpto parameter in (b) dropdown.php; the (3) txt_error and (4) txt_templatenotexist parameters in (c) template.php; the (5) split parameter in certain files, as demonstrated by (d) editprofile.php, (e) search.php, (f) index.php

Why this priority

EPSS top 8%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	4.9% (top 8%)
CISA exploited list	No
Published	2006-09-19
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: david bennett

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

Am I affected?

Timeline

2006-09-19 21:07 UTCPublished CVE record published
2026-06-16 22:29 UTCUpdated Record last modified

david bennett php-post UPGRADE

Affected: <= 1.0

Fixed in: newer than 1.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy php-post || rpm -q php-post || php-post --version

2. UPGRADE to newer than 1.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade php-post

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade php-post

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-post Web Forum 0.x.1.0 - 'pm.php?replyuser' Cross-Site Scripting

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-2006-4881?

php-post: upgrade to newer than 1.0. Exact commands for each OS are on this page.

Is CVE-2006-4881 being exploited?

CVE-2006-4881 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-2006-4881 affect?

CVE-2006-4881 affects php-post. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in David Bennett PHP-Post (PHPp) 1.0 and earlier allow remote attackers to inject arbitrary web script or HTML via (1) the replyuser parameter in (a) pm.php; (2) the txt_jumpto parameter i

How urgent is CVE-2006-4881?

Priority 43/100. EPSS top 8%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2006-4880 MEDIUM 5.0 UPGRADE David Bennett PHP-Post (PHPp) 1.0 and earlier allows remote attackers to obtain sensitive information via a di
CVE-2006-4879 HIGH 7.5 UPGRADE SQL injection vulnerability in profile.php in David Bennett PHP-Post (PHPp) 1.0 and earlier allows remote atta
CVE-2006-4878 MEDIUM 5.0 UPGRADE Directory traversal vulnerability in footer.php in David Bennett PHP-Post (PHPp) 1.0 and earlier allows remote
CVE-2006-4877 MEDIUM 5.0 UPGRADE Variable overwrite vulnerability in David Bennett PHP-Post (PHPp) 1.0 and earlier allows remote attackers to o
CVE-2006-3772 MEDIUM 5.1 DOWNGRADE PHP-Post 0.21 and 1.0, and possibly earlier versions, when auto-login is enabled, allows remote attackers to b

References

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