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Vulnerability record · CVE-2016-4309 · published 30 June 2016

CVE-2016-4309: Getsymphony symphony race condition vulnerability

Getsymphony · Symphony

Session fixation vulnerability in Symphony CMS 2.6.7, when session.use_only_cookies is disabled, allows remote attackers to hijack web sessions via the PHPSESSID parameter.

7.5 CVSS 3.1 High EPSS 10% · top 4.5% CWE-362 · Race condition
7.5CVSS 3.1 base score, v2 7.6
10%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

Session fixation vulnerability in Symphony CMS 2.6.7, when session.use_only_cookies is disabled, allows remote attackers to hijack web sessions via the PHPSESSID parameter.

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://hyp3rlinx.altervista.org/advisories/SYMPHONY-CMS-SESSION-FIXATION.txt Third Party Advisory
http://packetstormsecurity.com/files/137551/Symphony-CMS-2.6.7-Session-Fixation.html ExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/archive/1/538714/100/0/threaded Third Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/91299 Third Party AdvisoryVDB Entry
https://github.com/symphonycms/symphony-2/commit/b329a14adc40868965076a77210452e396243dcd Third Party Advisory
https://www.exploit-db.com/exploits/39983/ ExploitThird Party AdvisoryVDB Entry
http://hyp3rlinx.altervista.org/advisories/SYMPHONY-CMS-SESSION-FIXATION.txt Third Party Advisory
http://packetstormsecurity.com/files/137551/Symphony-CMS-2.6.7-Session-Fixation.html ExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/archive/1/538714/100/0/threaded Third Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/91299 Third Party AdvisoryVDB Entry
https://github.com/symphonycms/symphony-2/commit/b329a14adc40868965076a77210452e396243dcd Third Party Advisory
https://www.exploit-db.com/exploits/39983/ ExploitThird Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.1CVE-2020-25912Getsymphony symphony xml external entity (xxe) vulnerabilityA XML External Entity (XXE) vulnerability was discovered in symphony\lib\toolkit\class.xmlelement.php in Symphony 2.7.10 which can lead to an informa…EPSS 1.4%8.8CVE-2017-7694Getsymphony symphony code injection vulnerabilityRemote Code Execution vulnerability in symphony/content/content.blueprintsdatasources.php in Symphony CMS through 2.6.11 allows remote attackers to e…EPSS 4.4%7.5CVE-2010-3458Getsymphony symphony sql injection vulnerabilitySQL injection vulnerability in lib/toolkit/events/event.section.php in Symphony CMS 2.0.7 and 2.1.1 allows remote attackers to execute arbitrary SQL …EPSS 1.0%7.5CVE-2010-2143Getsymphony symphony path traversal vulnerabilityDirectory traversal vulnerability in index.php in Symphony CMS 2.0.7 allows remote attackers to read arbitrary files and possibly have unspecified ot…EPSS 7.3%6.8CVE-2013-7346Getsymphony symphony cross-site request forgery vulnerabilityCross-site request forgery (CSRF) vulnerability in Symphony CMS before 2.3.2 allows remote attackers to hijack the authentication of administrators f…EPSS 0.52%6.5CVE-2013-2559Getsymphony symphony sql injection vulnerabilitySQL injection vulnerability in Symphony CMS before 2.3.2 allows remote authenticated users to execute arbitrary SQL commands via the sort parameter t…EPSS 2.4%6.1CVE-2020-15071Getsymphony symphony cross-site scripting vulnerabilitycontent/content.blueprintsevents.php in Symphony CMS 3.0.0 allows XSS via fields['name'] to appendSubheading.EPSS 0.70%6.1CVE-2018-12043Getsymphony symphony cross-site scripting vulnerabilitycontent/content.blueprintspages.php in Symphony 2.7.6 has XSS via the pages content page.EPSS 0.82%

Source: NIST National Vulnerability Database (record CVE-2016-4309), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.