CVE Explorer
CVE-2025-66554
Contacts app for Nextcloud easily syncs contacts from various devices with your Nextcloud and allows editing. Prior to 5.5.4, 6.0.6, and 7.2.5, a malicious user was able to modify their organisation and title field to load additional CSS files. Javascript and other options were correctly blocked by the content security policy of the Nextcloud Server code. This vulnerability is fixed in 5.5.4, 6.0.6, and 7.2.5.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"security-advisories","vendor":"nextcloud","versions":[{"status":"affected","version":">= 7.0.0-alpha.1, < 7.2.5"},{"status":"affected","version":">= 6.0.0-alpha1, < 6.0.6"},{"status":"affected","version":"< 5.5.4"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:27db29b423d251eb610f272bdff1b51f945466e790435ddbc5695e7222a1d175 · sha256:32d0ca3e2d47e798… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.5,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:27db29b423d251eb610f272bdff1b51f945466e790435ddbc5695e7222a1d175 · sha256:32d0ca3e2d47e798… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:27db29b423d251eb610f272bdff1b51f945466e790435ddbc5695e7222a1d175 · sha256:32d0ca3e2d47e798… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"name":"https://github.com/nextcloud/contacts/commit/d954d098978dde1f121600e8b994e02f293c68b1","tags":["x_refsource_MISC"],"url":"https://github.com/nextcloud/contacts/commit/d954d098978dde1f121600e8b994e02f293c68b1"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:27db29b423d251eb610f272bdff1b51f945466e790435ddbc5695e7222a1d175 · sha256:32d0ca3e2d47e798… · /containers/cna/references/2
{"name":"https://github.com/nextcloud/contacts/pull/4619","tags":["x_refsource_MISC"],"url":"https://github.com/nextcloud/contacts/pull/4619"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:27db29b423d251eb610f272bdff1b51f945466e790435ddbc5695e7222a1d175 · sha256:32d0ca3e2d47e798… · /containers/cna/references/1
{"name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-9v78-cpfc-v6h2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-9v78-cpfc-v6h2"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:27db29b423d251eb610f272bdff1b51f945466e790435ddbc5695e7222a1d175 · sha256:32d0ca3e2d47e798… · /containers/cna/references/0
{"name":"https://hackerone.com/reports/3293290","tags":["x_refsource_MISC"],"url":"https://hackerone.com/reports/3293290"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:27db29b423d251eb610f272bdff1b51f945466e790435ddbc5695e7222a1d175 · sha256:32d0ca3e2d47e798… · /containers/cna/references/3
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.