CVE Explorer
CVE-2026-48946
The K2 frontend article-attachment upload path accepts files whose extension is `.php`, and Apache's standard mod_php matches `\.php$` and executes them under the K2 web user. A K2 Author can upload a `shell.php`, then fetch `/media/k2/attachments/shell.php` and execute arbitrary PHP code in the web server's context.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"K2 extension for Joomla","vendor":"getk2.org","versions":[{"status":"affected","version":"1.0-2.26"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:ff23907954f70577b8c2b7e039c2bd5bc031ce4502591d0428e5f1f4e1983ce9 · sha256:58e72f3e6ac58f32… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":6.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:ff23907954f70577b8c2b7e039c2bd5bc031ce4502591d0428e5f1f4e1983ce9 · sha256:58e72f3e6ac58f32… · /containers/adp/0/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-434","description":"CWE-434 Unrestricted Upload of File with Dangerous Type","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:ff23907954f70577b8c2b7e039c2bd5bc031ce4502591d0428e5f1f4e1983ce9 · sha256:58e72f3e6ac58f32… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"tags":["product"],"url":"https://www.getk2.org/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ff23907954f70577b8c2b7e039c2bd5bc031ce4502591d0428e5f1f4e1983ce9 · sha256:58e72f3e6ac58f32… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.