CVE-2014-9526: Multiple cross-site scripting (XSS) vulnerabilities in concrete5 5.7.2.1, 5.7.2, and earlier allow remote atta

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MEDIUM 4.3UPGRADEDOWNGRADE

CVE-2014-9526 is a medium-severity flaw (CVSS 4.3) affecting concrete5, concrete cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in concrete5 5.7.2.1, 5.7.2, and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) gName parameter in single_pages/dashboard/users/groups/bulkupdate.php or (2) instance_id parameter in tools/dashboard/sitemap_drag_request.php.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.9% (top 21%)
CISA exploited list	No
Weakness	CWE-79
Published	2015-01-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: concrete5 · concretecms

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

Am I affected?

Timeline

2015-01-05 21:59 UTCPublished CVE record published
2026-06-17 00:18 UTCUpdated Record last modified

concrete5 concrete5 UPGRADE

Affected: <= 5.7.2.1

Fixed in: newer than 5.7.2.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy concrete5 || rpm -q concrete5 || concrete5 --version

2. UPGRADE to newer than 5.7.2.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade concrete5

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade concrete5

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

concretecms concrete cms DOWNGRADE

Affected: 5.7.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.7.2

1. Check installed version

apt-cache policy concrete-cms || rpm -q concrete-cms || concrete-cms --version

2. No fixed release: DOWNGRADE to a release before 5.7.2 (Debian / Ubuntu)

apt-cache madison concrete-cms sudo apt install concrete-cms=<VERSION_BEFORE_5.7.2> sudo apt-mark hold concrete-cms

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

dnf --showduplicates list concrete-cms sudo dnf downgrade concrete-cms-<VERSION_BEFORE_5.7.2> sudo dnf versionlock add concrete-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-2014-9526?

concrete5: upgrade to newer than 5.7.2.1; concrete cms: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2014-9526 being exploited?

CVE-2014-9526 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-2014-9526 affect?

CVE-2014-9526 affects concrete5, concrete cms. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in concrete5 5.7.2.1, 5.7.2, and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) gName parameter in single_pages/dashboard/users/groups/bulkupdate.php or

How urgent is CVE-2014-9526?

Priority 40/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2017-6908 MEDIUM 6.1 UPGRADE An issue was discovered in concrete5 <= 5.6.3.4
CVE-2017-6905 MEDIUM 6.1 UPGRADE An issue was discovered in concrete5 <= 5.6.3.4
CVE-2015-3989 MEDIUM 4.3 UPGRADE Multiple cross-site scripting (XSS) vulnerabilities in concrete5 before 5.7.4 allow remote attackers to inject
CVE-2015-2250 MEDIUM 4.3 UPGRADE Multiple cross-site scripting (XSS) vulnerabilities in concrete5 before 5.7.4 allow remote attackers to inject
CVE-2014-5108 MEDIUM 4.3 DOWNGRADE DOWNGRADE Cross-site scripting (XSS) vulnerability in single_pages\download_file.php in concrete5 before 5.6.3 allows re

References

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