CVE-2011-3774: php Easy Survey Package (phpESP) 2.1.1 allows remote attackers to obtain sensitive information via a direct re

Routine

MEDIUM 5.0DOWNGRADE

CVE-2011-3774 is a medium-severity flaw (CVSS 5.0) affecting phpesp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

php Easy Survey Package (phpESP) 2.1.1 allows remote attackers to obtain sensitive information via a direct request to a .php file, which reveals the installation path in an error message, as demonstrated by public/landing.php and certain other files.

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	1.2% (top 31%)
CISA exploited list	No
Weakness	CWE-200
Published	2011-09-24
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: bishop bettini

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

Am I affected?

Timeline

2011-09-24 00:55 UTCPublished CVE record published
2026-06-16 23:33 UTCUpdated Record last modified

bishop bettini phpesp DOWNGRADE

Affected: 2.1.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.1.1 (Debian / Ubuntu)

apt-cache madison phpesp sudo apt install phpesp=<VERSION_BEFORE_2.1.1> sudo apt-mark hold phpesp

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

dnf --showduplicates list phpesp sudo dnf downgrade phpesp-<VERSION_BEFORE_2.1.1> sudo dnf versionlock add phpesp

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-2011-3774?

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

Is CVE-2011-3774 being exploited?

CVE-2011-3774 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-2011-3774 affect?

CVE-2011-3774 affects phpesp. Severity is medium (CVSS 5.0). php Easy Survey Package (phpESP) 2.1.1 allows remote attackers to obtain sensitive information via a direct request to a .php file, which reveals the installation path in an error message, as demonstrated by public/landing.php and certain o

How urgent is CVE-2011-3774?

Priority 35/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

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CVE-2005-3406 MEDIUM 4.3 DOWNGRADE Cross-site scripting (XSS) vulnerability in phpESP 1.7.5 and earlier allows remote attackers to inject arbitra

References

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