CVE-2013-3636: ProjectPier 0.8.8 has a Remote Information Disclosure Weakness because of the lack of the HttpOnly cookie flag

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MEDIUM 5.4DOWNGRADE

CVE-2013-3636 is a medium-severity flaw (CVSS 5.4) affecting projectpier. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ProjectPier 0.8.8 has a Remote Information Disclosure Weakness because of the lack of the HttpOnly cookie flag

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	1.0% (top 37%)
CISA exploited list	No
Weakness	CWE-79
Published	2020-02-07
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: projectpier

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-02-07 15:15 UTCPublished CVE record published
2026-06-16 23:55 UTCUpdated Record last modified

projectpier projectpier DOWNGRADE

Affected: 0.8.8

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.8.8

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.8.8 (Debian / Ubuntu)

apt-cache madison projectpier sudo apt install projectpier=<VERSION_BEFORE_0.8.8> sudo apt-mark hold projectpier

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

dnf --showduplicates list projectpier sudo dnf downgrade projectpier-<VERSION_BEFORE_0.8.8> sudo dnf versionlock add projectpier

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-2013-3636?

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

Is CVE-2013-3636 being exploited?

CVE-2013-3636 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-2013-3636 affect?

CVE-2013-3636 affects projectpier. Severity is medium (CVSS 5.4). ProjectPier 0.8.8 has a Remote Information Disclosure Weakness because of the lack of the HttpOnly cookie flag

How urgent is CVE-2013-3636?

Priority 40/100. Public exploit reference

Related CVEs

CVE-2013-3637 MEDIUM 5.4 DOWNGRADE ProjectPier 0.8.8 does not use the Secure flag for cookies
CVE-2013-3635 MEDIUM 5.4 DOWNGRADE ProjectPier 0.8.8 has stored XSS

References

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