CVE Explorer

CVE-2026-48944

The K2 frontend article-save handler accepts an `attachment[N][existing]` POST field that is concatenated with `JPATH_SITE/` and passed to `JFile::copy()`. `JPath::clean` does NOT strip `..`, and there is no allow-list of source paths. An Author can therefore copy `configuration.php` (or any other file readable by the web user — including `../../../etc/passwd`) into `/media/k2/attachments/`, then retrieve the contents via the K2 attachment-download endpoint.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e32f582b90047ff93fc35374db42d541038fde294d5b84257a70ad5e7d8ef8d1

Known exploited

Not asserted

Disputed

Stale source

Conflicts

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_v5affected
urn:baitaphish:normalized-source-record:v2:7a1b153fbbe34edc06d2604dfc0df1b9131417fb1bce36ab19317eba4f4675c0 · sha256:04009bdf233fd290… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:7a1b153fbbe34edc06d2604dfc0df1b9131417fb1bce36ab19317eba4f4675c0 · sha256:04009bdf233fd290… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-22","description":"CWE-22 Improper Limitation of a Pathname to a Restricted Directory","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:7a1b153fbbe34edc06d2604dfc0df1b9131417fb1bce36ab19317eba4f4675c0 · sha256:04009bdf233fd290… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"tags":["product"],"url":"https://www.getk2.org/"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:7a1b153fbbe34edc06d2604dfc0df1b9131417fb1bce36ab19317eba4f4675c0 · sha256:04009bdf233fd290… · /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.

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