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Fencer Vulns
medium 4.3

CVE-2007-3799 json

The session_start function in ext/session in PHP 4.x up to 4.4.7 and 5.x up to 5.2.3 allows remote attackers to insert arbitrary attributes…

published 2007-07-16 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-3783

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.9%
EPSS 7.9% chance of exploitation in 30 days, percentile 94%
public exploits
1
Exploit-DB

Summary

The session_start function in ext/session in PHP 4.x up to 4.4.7 and 5.x up to 5.2.3 allows remote attackers to insert arbitrary attributes into the session cookie via special characters in a cookie that is obtained from (1) PATH_INFO, (2) the session_id function, and (3) the session_start function, which are not encoded or filtered when the new session cookie is generated, a related issue to CVE-2006-0207.

Patch / fix

  • php RHEL 2 APPLICATION_STACK 5.2.3-3.el5s2
  • php-gd RHEL 2 APPLICATION_STACK 5.2.3-3.el5s2
  • php-cli RHEL 2 APPLICATION_STACK 5.2.3-3.el5s2
  • php-dba RHEL 2 APPLICATION_STACK 5.2.3-3.el5s2
  • php-pdo RHEL 2 APPLICATION_STACK 5.2.3-3.el5s2
  • php-xml RHEL 2 APPLICATION_STACK 5.2.3-3.el5s2
  • php-imap RHEL 2 APPLICATION_STACK 5.2.3-3.el5s2
  • php-ldap RHEL 2 APPLICATION_STACK 5.2.3-3.el5s2

red hat advisories RHSA-2007:0917RHSA-2007:0891RHSA-2007:0890RHSA-2007:0889RHSA-2007:0888

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2007-3799 updated

php cross-site cookie insertion

  • Red Hat Application Stack v1 for Enterprise Linux AS (v.4) php 5.1.6-3.el4s1.8, php-gd 5.1.6-3.el4s1.8, php-cli 5.1.6-3.el4s1.8, php-dba 5.1.6-3.el4s1.8, php-pdo 5.1.6-3.el4s1.8, php-xml 5.1.6-3.el4s1.8, +12 more Red Hat Application Stack v1 for Enterprise Linux ES (v.4) php 5.1.6-3.el4s1.8, php-gd 5.1.6-3.el4s1.8, php-cli 5.1.6-3.el4s1.8, php-dba 5.1.6-3.el4s1.8, php-pdo 5.1.6-3.el4s1.8, php-xml 5.1.6-3.el4s1.8, +12 more
    fixed: vendor fix RHSA-2007:0891
  • Red Hat Desktop version 3 php 4.3.2-43.ent, php-imap 4.3.2-43.ent, php-ldap 4.3.2-43.ent, php-odbc 4.3.2-43.ent, php-mysql 4.3.2-43.ent, php-pgsql 4.3.2-43.ent
    fixed: vendor fix RHSA-2007:0889
  • Red Hat Enterprise Linux (v. 5 server) php 5.1.6-15.el5, php-gd 5.1.6-15.el5, php-cli 5.1.6-15.el5, php-dba 5.1.6-15.el5, php-pdo 5.1.6-15.el5, php-xml 5.1.6-15.el5, +12 more
    fixed: vendor fix RHSA-2007:0890
  • Red Hat Enterprise Linux AS (Advanced Server) version 2.1 php 4.1.2-2.19, php-imap 4.1.2-2.19, php-ldap 4.1.2-2.19, php-odbc 4.1.2-2.19, php-mysql 4.1.2-2.19, php-pgsql 4.1.2-2.19, +1 more
    fixed: vendor fix RHSA-2007:0888
  • Red Hat Enterprise Linux AS version 3 php 4.3.2-43.ent, php-imap 4.3.2-43.ent, php-ldap 4.3.2-43.ent, php-odbc 4.3.2-43.ent, php-mysql 4.3.2-43.ent, php-pgsql 4.3.2-43.ent
    fixed: vendor fix RHSA-2007:0889
  • Red Hat Enterprise Linux AS version 4 php 4.3.9-3.22.9, php-gd 4.3.9-3.22.9, php-imap 4.3.9-3.22.9, php-ldap 4.3.9-3.22.9, php-odbc 4.3.9-3.22.9, php-pear 4.3.9-3.22.9, +7 more Red Hat Enterprise Linux Desktop version 4 php 4.3.9-3.22.9, php-gd 4.3.9-3.22.9, php-imap 4.3.9-3.22.9, php-ldap 4.3.9-3.22.9, php-odbc 4.3.9-3.22.9, php-pear 4.3.9-3.22.9, +7 more Red Hat Enterprise Linux Desktop Workstation (v. 5 client) php 5.1.6-15.el5, php-gd 5.1.6-15.el5, php-cli 5.1.6-15.el5, php-dba 5.1.6-15.el5, php-pdo 5.1.6-15.el5, php-xml 5.1.6-15.el5, +12 more
    fixed: vendor fix RHSA-2007:0890
  • Red Hat Enterprise Linux ES version 2.1 php 4.1.2-2.19, php-imap 4.1.2-2.19, php-ldap 4.1.2-2.19, php-odbc 4.1.2-2.19, php-mysql 4.1.2-2.19, php-pgsql 4.1.2-2.19, +1 more
    fixed: vendor fix RHSA-2007:0888
  • Red Hat Enterprise Linux ES version 3 php 4.3.2-43.ent, php-imap 4.3.2-43.ent, php-ldap 4.3.2-43.ent, php-odbc 4.3.2-43.ent, php-mysql 4.3.2-43.ent, php-pgsql 4.3.2-43.ent
    fixed: vendor fix RHSA-2007:0889
show 5 more
  • Red Hat Enterprise Linux ES version 4 php 4.3.9-3.22.9, php-gd 4.3.9-3.22.9, php-imap 4.3.9-3.22.9, php-ldap 4.3.9-3.22.9, php-odbc 4.3.9-3.22.9, php-pear 4.3.9-3.22.9, +7 more
    fixed: vendor fix RHSA-2007:0890
  • Red Hat Enterprise Linux WS version 2.1 php 4.1.2-2.19, php-imap 4.1.2-2.19, php-ldap 4.1.2-2.19, php-odbc 4.1.2-2.19, php-mysql 4.1.2-2.19, php-pgsql 4.1.2-2.19, +1 more
    fixed: vendor fix RHSA-2007:0888
  • Red Hat Enterprise Linux WS version 3 php 4.3.2-43.ent, php-imap 4.3.2-43.ent, php-ldap 4.3.2-43.ent, php-odbc 4.3.2-43.ent, php-mysql 4.3.2-43.ent, php-pgsql 4.3.2-43.ent
    fixed: vendor fix RHSA-2007:0889
  • Red Hat Enterprise Linux WS version 4 php 4.3.9-3.22.9, php-gd 4.3.9-3.22.9, php-imap 4.3.9-3.22.9, php-ldap 4.3.9-3.22.9, php-odbc 4.3.9-3.22.9, php-pear 4.3.9-3.22.9, +7 more
    fixed: vendor fix RHSA-2007:0890
  • Red Hat Linux Advanced Workstation 2.1 php 4.1.2-2.19, php-imap 4.1.2-2.19, php-ldap 4.1.2-2.19, php-odbc 4.1.2-2.19, php-mysql 4.1.2-2.19, php-pgsql 4.1.2-2.19, +1 more
    fixed: vendor fix RHSA-2007:0888

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (EDB-30130)
  2. Published

Exploit prediction

7.92% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-30130 PHP 5.2.3 - EXT/Session HTTP Response Header Injection remote, 2007-06-04

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-20 Improper Input Validation
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.