In Mahara before 20.04.5, 20.10.3, 21.04.2, and 21.10.0, exporting collections via PDF export could lead to code execution via shell metacharacters in a collection name. Additional, in Mahara before 20.10.4, 21.04.3, and 21.10.1, exporting collections via PDF export could cause code execution
CVE-2021-43266
HIGHNVD 7.37.3—
EchelonGraph scoreMEDIUM confidence
Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2022-05-24. NVD baseline CVSS 7.3; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.3Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.3
- EG Score
- 7.3(medium)
- EG Risk
- 38(Track)EG Risk 38/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity73% × 45%Exploitation1% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 70%
- KEV
- Not listed
Published
November 2, 2021
Last Modified
November 21, 2024
References (8)
- cve@mitrehttps://bugs.launchpad.net/mahara/+bug/1942903
- cve@mitrehttps://bugs.launchpad.net/mahara/+bug/1949527
- cve@mitrehttps://mahara.org/interaction/forum/topic.php?id=8952
- cve@mitrehttps://mahara.org/interaction/forum/topic.php?id=8995
- af854a3a-2127-422b-91ae-364da2661108https://bugs.launchpad.net/mahara/+bug/1942903
- af854a3a-2127-422b-91ae-364da2661108https://bugs.launchpad.net/mahara/+bug/1949527
- af854a3a-2127-422b-91ae-364da2661108https://mahara.org/interaction/forum/topic.php?id=8952
- af854a3a-2127-422b-91ae-364da2661108https://mahara.org/interaction/forum/topic.php?id=8995
Related CVEs
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Frequently asked(5)
What is CVE-2021-43266?
CVE-2021-43266 is a high vulnerability published on November 2, 2021. In Mahara before 20.04.5, 20.10.3, 21.04.2, and 21.10.0, exporting collections via PDF export could lead to code execution via shell metacharacters in a collection name. Additional, in Mahara before 20.10.4, 21.04.3, and 21.10.1, exporting collections via PDF export could cause code execution
When was CVE-2021-43266 disclosed?
CVE-2021-43266 was first published in the National Vulnerability Database on November 2, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-43266 actively exploited?
CVE-2021-43266 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 30.3% of all scored CVEs.
What is the CVSS score of CVE-2021-43266?
CVE-2021-43266 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2021-43266?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-43266, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2021-43266
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