CVE-2007-2099: Cross-site scripting (XSS) vulnerability in htdocs/php.php in OpenConcept Back-End CMS 0.4.7 allows remote att

This month

MEDIUM 6.8DOWNGRADE

CVE-2007-2099 is a medium-severity flaw (CVSS 6.8) affecting back-end cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in htdocs/php.php in OpenConcept Back-End CMS 0.4.7 allows remote attackers to inject arbitrary web script or HTML via the page[] parameter.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	1.1% (top 33%)
CISA exploited list	No
Published	2007-04-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: openconcept

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

Am I affected?

Timeline

2007-04-18 10:19 UTCPublished CVE record published
2026-06-16 22:38 UTCUpdated Record last modified

openconcept back-end cms DOWNGRADE

Affected: 0.4.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.4.7

1. Check installed version

apt-cache policy back-end-cms || rpm -q back-end-cms || back-end-cms --version

2. No fixed release: DOWNGRADE to a release before 0.4.7 (Debian / Ubuntu)

apt-cache madison back-end-cms sudo apt install back-end-cms=<VERSION_BEFORE_0.4.7> sudo apt-mark hold back-end-cms

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

dnf --showduplicates list back-end-cms sudo dnf downgrade back-end-cms-<VERSION_BEFORE_0.4.7> sudo dnf versionlock add back-end-cms

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-2007-2099?

back-end cms: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2007-2099 being exploited?

CVE-2007-2099 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-2007-2099 affect?

CVE-2007-2099 affects back-end cms. Severity is medium (CVSS 6.8). Cross-site scripting (XSS) vulnerability in htdocs/php.php in OpenConcept Back-End CMS 0.4.7 allows remote attackers to inject arbitrary web script or HTML via the page[] parameter.

How urgent is CVE-2007-2099?

Priority 40/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

Related CVEs

CVE-2007-2097 HIGH 7.5 DOWNGRADE Multiple PHP remote file inclusion vulnerabilities in OpenConcept Back-End CMS 0.4.7 allow remote attackers to
CVE-2006-5076 HIGH 7.5 DOWNGRADE Multiple PHP remote file inclusion vulnerabilities in OpenConcept Back-End 0.4.5 allow remote attackers to exe
CVE-2006-2682 MEDIUM 6.4 DOWNGRADE PHP remote file inclusion vulnerability in BE_config.php in Back-End CMS 0.7.2.1 and earlier allows remote att

References

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