HOMEVULNERABILITIESCVE-2019-10911
HIGH

CVE-2019-10911

CWE-287Published: May 16, 2019· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

In Symfony before 2.7.51, 2.8.x before 2.8.50, 3.x before 3.4.26, 4.x before 4.1.12, and 4.2.x before 4.2.7, a vulnerability would allow an attacker to authenticate as a privileged user on sites with user registration and remember me login functionality enabled. This is related to symfony/security.

NVD Source

Technical Analysis

CVE-2019-10911 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.5.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Drupal1 product(s)
drupal
sensiolabs1 product(s)
symfony
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/symfony/symfony/commit/a29ce2817cf43bb1850cf6af114004ac26c7a081
PATCHhttps://github.com/symfony/symfony/commit/a29ce2817cf43bb1850cf6af114004ac26c7a081
ADVISORYhttps://symfony.com/blog/cve-2019-10911-add-a-separator-in-the-remember-me-cookie-hash
ADVISORYhttps://www.synology.com/security/advisory/Synology_SA_19_19
ADVISORYhttps://symfony.com/blog/cve-2019-10911-add-a-separator-in-the-remember-me-cookie-hash
ADVISORYhttps://www.synology.com/security/advisory/Synology_SA_19_19

All References (6)

→
https://github.com/symfony/symfony/commit/a29ce2817cf43bb1850cf6af114004ac26c7a081Patch · Third Party Advisory
→
https://symfony.com/blog/cve-2019-10911-add-a-separator-in-the-remember-me-cookie-hashVendor Advisory
→
https://www.synology.com/security/advisory/Synology_SA_19_19Third Party Advisory
→
https://github.com/symfony/symfony/commit/a29ce2817cf43bb1850cf6af114004ac26c7a081Patch · Third Party Advisory
→
https://symfony.com/blog/cve-2019-10911-add-a-separator-in-the-remember-me-cookie-hashVendor Advisory
→
https://www.synology.com/security/advisory/Synology_SA_19_19Third Party Advisory

Quick Facts

CVE IDCVE-2019-10911
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-287
CISA KEVNo
Affected2 vendor(s)
PublishedMay 16, 2019

Related CVEs (CWE-287)

CVE-2008-1262
10.0
CVE-2019-16649
10.0
CVE-2017-13995
10.0
CVE-2018-6667
10.0
CVE-2019-12643
10.0
CVE-2010-4232
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-10911 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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