CVE-2018-10966: An issue was discovered in GamerPolls 0.4.6, related to config/environments/all.js and config/initializers/02_

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HIGH 7.3REMOTEDOWNGRADE

CVE-2018-10966 is a high-severity flaw (CVSS 7.3) affecting gamerpolls. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in GamerPolls 0.4.6, related to config/environments/all.js and config/initializers/02_passport.js. An attacker can edit the Passport.js contents of the session cookie to contain the ID number of the account they wish to take over, and re-sign it using the hard coded secret.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-798
Published	2018-06-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: gamerpolls

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

Am I affected?

Timeline

2018-06-05 15:29 UTCPublished CVE record published
2026-06-17 01:35 UTCUpdated Record last modified

gamerpolls gamerpolls DOWNGRADE

Affected: 0.4.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.4.6

1. Check installed version

apt-cache policy gamerpolls || rpm -q gamerpolls || gamerpolls --version

2. No fixed release: DOWNGRADE to a release before 0.4.6 (Debian / Ubuntu)

apt-cache madison gamerpolls sudo apt install gamerpolls=<VERSION_BEFORE_0.4.6> sudo apt-mark hold gamerpolls

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

dnf --showduplicates list gamerpolls sudo dnf downgrade gamerpolls-<VERSION_BEFORE_0.4.6> sudo dnf versionlock add gamerpolls

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-2018-10966?

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

Is CVE-2018-10966 being exploited?

CVE-2018-10966 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-2018-10966 affect?

CVE-2018-10966 affects gamerpolls. Severity is high (CVSS 7.3). An issue was discovered in GamerPolls 0.4.6, related to config/environments/all.js and config/initializers/02_passport.js. An attacker can edit the Passport.js contents of the session cookie to contain the ID number of the account they wish

How urgent is CVE-2018-10966?

Priority 54/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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