CVE-2012-3873: Multiple SQL injection vulnerabilities in Open Constructor 3.12.0 allow remote authenticated users to execute

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MEDIUM 6.5DOWNGRADE

CVE-2012-3873 is a medium-severity flaw (CVSS 6.5) affecting openconstructor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple SQL injection vulnerabilities in Open Constructor 3.12.0 allow remote authenticated users to execute arbitrary SQL commands via the id parameter to (1) data/gallery/edit.php, (2) data/guestbook/edit.php, (3) data/file/edit.php, (4) data/htmltext/edit.php, (5) data/publication/edit.php, or (6) data/event/edit.php.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.5 (Medium)
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-89
Published	2012-12-28
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: openconstructor project

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

Am I affected?

Timeline

2012-12-28 11:48 UTCPublished CVE record published
2026-06-16 23:44 UTCUpdated Record last modified

openconstructor project openconstructor DOWNGRADE

Affected: 3.12.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.12.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.12.0 (Debian / Ubuntu)

apt-cache madison openconstructor sudo apt install openconstructor=<VERSION_BEFORE_3.12.0> sudo apt-mark hold openconstructor

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

dnf --showduplicates list openconstructor sudo dnf downgrade openconstructor-<VERSION_BEFORE_3.12.0> sudo dnf versionlock add openconstructor

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Openconstructor CMS 3.12.0 - 'id' Multiple SQL Injections

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-2012-3873?

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

Is CVE-2012-3873 being exploited?

CVE-2012-3873 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-2012-3873 affect?

CVE-2012-3873 affects openconstructor. Severity is medium (CVSS 6.5). Multiple SQL injection vulnerabilities in Open Constructor 3.12.0 allow remote authenticated users to execute arbitrary SQL commands via the id parameter to (1) data/gallery/edit.php, (2) data/guestbook/edit.php, (3) data/file/edit.php, (4)

How urgent is CVE-2012-3873?

Priority 43/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2012-3872 MEDIUM 4.3 DOWNGRADE Multiple cross-site scripting (XSS) vulnerabilities in Open Constructor 3.12.0 allow remote attackers to injec
CVE-2012-3871 LOW 3.5 DOWNGRADE Cross-site scripting (XSS) vulnerability in data/hybrid/i_hybrid.php in Open Constructor 3.12.0 allows remote
CVE-2012-3870 LOW 3.5 DOWNGRADE Multiple cross-site scripting (XSS) vulnerabilities in objects/createobject.php in Open Constructor 3.12.0 all

References

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