How severe is CVE-2012-6563?

CVE-2012-6563 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2012-6563 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-6563?

CVE-2012-6563 primarily affects Elgg. In total, 23 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-6563?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-6563 published?

CVE-2012-6563 was published on 2013-05-23 and last updated on 2026-06-16.

CVE-2012-6563

CVE-2012-6563 is a medium-severity vulnerability in Elgg with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Elgg
Published: 2013-05-23
Last modified: 2026-06-16

Description

engine/lib/access.php in Elgg before 1.8.5 does not properly clear cached access lists during plugin boot, which allows remote attackers to read private entities via unspecified vectors.

Frequently asked questions

What is CVE-2012-6563?: engine/lib/access.php in Elgg before 1.8.5 does not properly clear cached access lists during plugin boot, which allows remote attackers to read private entities via unspecified vectors.
How severe is CVE-2012-6563?: CVE-2012-6563 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2012-6563 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-6563?: CVE-2012-6563 primarily affects Elgg. In total, 23 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-6563?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-6563 published?: CVE-2012-6563 was published on 2013-05-23 and last updated on 2026-06-16.

References

Affected products (23)

cpe:2.3:a:elgg:elgg:*:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.0:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.1:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.2:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.3:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.4:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.5:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.6:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.7:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.8:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.9:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.10:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.11:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.12:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.13:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.14:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.15:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.16:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.17:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.7.18:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.8.0.1:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.8.1:*:*:*:*:*:*:*
cpe:2.3:a:elgg:elgg:1.8.3:*:*:*:*:*:*:*

More vulnerabilities in Elgg

CVE-2011-2936 — Critical (CVSS 9.8): Elgg through 1.7.10 has a SQL injection vulnerability
CVE-2021-3980 — High (CVSS 7.5): elgg is vulnerable to Exposure of Private Personal Information to an Unauthorized Actor
CVE-2012-6562 — Medium (CVSS 6.8): engine/lib/users.php in Elgg before 1.8.5 does not properly specify permissions for the useradd action, which allows…
CVE-2011-2935 — Medium (CVSS 6.1): Elgg through 1.7.10 has XSS
CVE-2019-11016 — Medium (CVSS 6.1): Elgg before 1.12.18 and 2.3.x before 2.3.11 has an open redirect.
CVE-2021-3964 — Medium (CVSS 5.9): elgg is vulnerable to Authorization Bypass Through User-Controlled Key

All CVEs affecting Elgg →

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