CVE-2013-5020: Multiple cross-site scripting (XSS) vulnerabilities in bb_admin.php in MiniBB before 3.0.1 allow remote attack

Q: How do I fix CVE-2013-5020?

minibb: upgrade to newer than 3.0. Exact commands for each OS are on this page.

Q: Is CVE-2013-5020 being exploited?

CVE-2013-5020 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2013-5020 affect?

CVE-2013-5020 affects minibb. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in bb_admin.php in MiniBB before 3.0.1 allow remote attackers to inject arbitrary web script or HTML via the (1) forum_name, (2) forum_group, (3) forum_icon, or (4) forum_desc parameter.

Q: How urgent is CVE-2013-5020?

Priority 40/100. Public exploit reference

This month

MEDIUM 4.3UPGRADE

CVE-2013-5020 is a medium-severity flaw (CVSS 4.3) affecting minibb. 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 bb_admin.php in MiniBB before 3.0.1 allow remote attackers to inject arbitrary web script or HTML via the (1) forum_name, (2) forum_group, (3) forum_icon, or (4) forum_desc parameter. NOTE: the whatus vector is already covered by CVE-2008-2066.

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	2013-07-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: minibb

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

Am I affected?

Timeline

2013-07-31 13:20 UTCPublished CVE record published
2026-06-16 23:58 UTCUpdated Record last modified

minibb minibb UPGRADE

Affected: <= 3.0

Fixed in: newer than 3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 3.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade minibb

Note

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

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: WordPress Plugin miniBB - SQL Injection / Multiple Cross-Site Scripting Vulnerabilities

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-2013-5020?

minibb: upgrade to newer than 3.0. Exact commands for each OS are on this page.

Is CVE-2013-5020 being exploited?

CVE-2013-5020 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-2013-5020 affect?

CVE-2013-5020 affects minibb. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in bb_admin.php in MiniBB before 3.0.1 allow remote attackers to inject arbitrary web script or HTML via the (1) forum_name, (2) forum_group, (3) forum_icon, or (4) forum_desc parameter.

How urgent is CVE-2013-5020?

Priority 40/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2018-6506 MEDIUM 4.8 DOWNGRADE Cross-Site Scripting (XSS) exists in the Add Forum feature in the Administrative Panel in miniBB 3.2.2 via cra
CVE-2014-9254 HIGH 7.5 UPGRADE bb_func_unsub.php in MiniBB 3.1 before 20141127 uses an incorrect regular expression, which allows remote atta
CVE-2008-2067 HIGH 7.5 DOWNGRADE SQL injection vulnerability in bb_admin.php in miniBB 2.2a allows remote attackers to execute arbitrary SQL co
CVE-2008-2066 MEDIUM 4.3 DOWNGRADE Cross-site scripting (XSS) vulnerability in bb_admin.php in miniBB 2.2a allows remote attackers to inject arbi
CVE-2008-2029 MEDIUM 6.8 UPGRADE Multiple SQL injection vulnerabilities in (1) setup_mysql.php and (2) setup_options.php in miniBB 2.2 and poss

References

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