CVE Explorer

CVE-2025-8999

The Sydney theme for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'activate_modules' function in all versions up to, and including, 2.56. This makes it possible for authenticated attackers, with Subscriber-level access and above, to activate or deactivate various theme modules.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:dc1e83a7b466f9104a8ea6394764ff07aed8761646e0f855355887d1887df42d

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"defaultStatus":"unaffected","product":"Sydney","vendor":"athemes","versions":[{"lessThanOrEqual":"2.56","status":"affected","version":"0","versionType":"semver"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:8ee834d48c7bc67fc26f79fe6cea1c6245de6e9dbfe35adebf24ed9542fe4093 · sha256:76f7fa25fdff3e29… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:8ee834d48c7bc67fc26f79fe6cea1c6245de6e9dbfe35adebf24ed9542fe4093 · sha256:76f7fa25fdff3e29… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-862","description":"CWE-862 Missing Authorization","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:8ee834d48c7bc67fc26f79fe6cea1c6245de6e9dbfe35adebf24ed9542fe4093 · sha256:76f7fa25fdff3e29… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions

{"url":"https://research.cleantalk.org/cve-2025-8999/"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8ee834d48c7bc67fc26f79fe6cea1c6245de6e9dbfe35adebf24ed9542fe4093 · sha256:76f7fa25fdff3e29… · /containers/cna/references/4

{"url":"https://themes.trac.wordpress.org/browser/sydney/2.55/inc/classes/class-sydney-modules.php#L166"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8ee834d48c7bc67fc26f79fe6cea1c6245de6e9dbfe35adebf24ed9542fe4093 · sha256:76f7fa25fdff3e29… · /containers/cna/references/1

{"url":"https://themes.trac.wordpress.org/browser/sydney/2.55/inc/modules/class-sydney-modules.php#L72"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8ee834d48c7bc67fc26f79fe6cea1c6245de6e9dbfe35adebf24ed9542fe4093 · sha256:76f7fa25fdff3e29… · /containers/cna/references/2

{"url":"https://themes.trac.wordpress.org/changeset/288374/"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8ee834d48c7bc67fc26f79fe6cea1c6245de6e9dbfe35adebf24ed9542fe4093 · sha256:76f7fa25fdff3e29… · /containers/cna/references/3

{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/965582c6-a52e-4f88-81ef-b5dd761a0c23?source=cve"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8ee834d48c7bc67fc26f79fe6cea1c6245de6e9dbfe35adebf24ed9542fe4093 · sha256:76f7fa25fdff3e29… · /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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