CVE-2015-5511: The HybridAuth Social Login module 7.x-2.x before 7.x-2.13 for Drupal allows remote attackers to bypass the us

Routine

MEDIUM 5.0DOWNGRADE

CVE-2015-5511 is a medium-severity flaw (CVSS 5.0) affecting hybridauth social login. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The HybridAuth Social Login module 7.x-2.x before 7.x-2.13 for Drupal allows remote attackers to bypass the user registration by administrator only configuration and create an account via a social login.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.1% (top 18%)
CISA exploited list	No
Weakness	CWE-264
Published	2015-08-18
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: hybridauth social login project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2015-08-18 18:00 UTCPublished CVE record published
2026-06-17 00:29 UTCUpdated Record last modified

hybridauth social login project hybridauth social login DOWNGRADE

Affected: 7.x-2.0 · 7.x-2.1 · 7.x-2.2 · 7.x-2.3 · 7.x-2.4 · 7.x-2.5 · 7.x-2.6 · 7.x-2.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.x-2.0

1. Check installed version

apt-cache policy hybridauth-social-login || rpm -q hybridauth-social-login || hybridauth-social-login --version

2. No fixed release: DOWNGRADE to a release before 7.x-2.0 (Debian / Ubuntu)

apt-cache madison hybridauth-social-login sudo apt install hybridauth-social-login=<VERSION_BEFORE_7.x-2.0> sudo apt-mark hold hybridauth-social-login

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list hybridauth-social-login sudo dnf downgrade hybridauth-social-login-<VERSION_BEFORE_7.x-2.0> sudo dnf versionlock add hybridauth-social-login

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2015-5511?

hybridauth social login: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2015-5511 being exploited?

CVE-2015-5511 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-2015-5511 affect?

CVE-2015-5511 affects hybridauth social login. Severity is medium (CVSS 5.0). The HybridAuth Social Login module 7.x-2.x before 7.x-2.13 for Drupal allows remote attackers to bypass the user registration by administrator only configuration and create an account via a social login.

How urgent is CVE-2015-5511?

Priority 38/100. No elevated risk signals yet.

Software pages

Drupal vulnerabilities

Related CVEs

CVE-2015-4395 LOW 3.5 DOWNGRADE The HybridAuth Social Login module 7.x-2.x before 7.x-2.10 for Drupal stores passwords in plaintext when the "

References

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