CVE-2016-4309
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 10.2%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
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
- 7.5 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 10.22% probability · 96th percentile
- Public exploits
- 1 in Exploit-DB · first 20 June 2016
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Affected
- getsymphony/symphony
- Source
- cret@cert.org
EPSS 10.2% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://hyp3rlinx.altervista.org/advisories/SYMPHONY-CMS-SESSION-FIXATION.txtThird Party Advisory
- http://packetstormsecurity.com/files/137551/Symphony-CMS-2.6.7-Session-Fixation.htmlExploit, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/archive/1/538714/100/0/threadedThird Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/91299Third Party Advisory, VDB Entry
- https://github.com/symphonycms/symphony-2/commit/b329a14adc40868965076a77210452e396243dcdThird Party Advisory
- https://www.exploit-db.com/exploits/39983/Exploit, Third Party Advisory, VDB Entry
- http://hyp3rlinx.altervista.org/advisories/SYMPHONY-CMS-SESSION-FIXATION.txtThird Party Advisory
- http://packetstormsecurity.com/files/137551/Symphony-CMS-2.6.7-Session-Fixation.htmlExploit, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/archive/1/538714/100/0/threadedThird Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/91299Third Party Advisory, VDB Entry
- https://github.com/symphonycms/symphony-2/commit/b329a14adc40868965076a77210452e396243dcdThird Party Advisory
- https://www.exploit-db.com/exploits/39983/Exploit, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.