CVE Explorer

CVE-2026-28348

lxml_html_clean is a project for HTML cleaning functionalities copied from `lxml.html.clean`. Prior to version 0.4.4, the _has_sneaky_javascript() method strips backslashes before checking for dangerous CSS keywords. This causes CSS Unicode escape sequences to bypass the @import and expression() filters, allowing external CSS loading or XSS in older browsers. This issue has been patched in version 0.4.4.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1d0509c1df76e22d90a0f44d5e6fefc6d0af92078e9fa81ec5703ab11c0cd7a5

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"lxml_html_clean","vendor":"fedora-python","versions":[{"status":"affected","version":"< 0.4.4"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:56439d3e3bf2160b3dc407db80aea57166206e928e012ad094420290ae1e32ec · sha256:32de82142aef4add… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:56439d3e3bf2160b3dc407db80aea57166206e928e012ad094420290ae1e32ec · sha256:32de82142aef4add… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-116","description":"CWE-116: Improper Encoding or Escaping of Output","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:56439d3e3bf2160b3dc407db80aea57166206e928e012ad094420290ae1e32ec · sha256:32de82142aef4add… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions

{"name":"https://github.com/fedora-python/lxml_html_clean/commit/2ef732667ddbc74ea59847bcf24b75809aaeed3b","tags":["x_refsource_MISC"],"url":"https://github.com/fedora-python/lxml_html_clean/commit/2ef732667ddbc74ea59847bcf24b75809aaeed3b"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:56439d3e3bf2160b3dc407db80aea57166206e928e012ad094420290ae1e32ec · sha256:32de82142aef4add… · /containers/cna/references/1

{"tags":["exploit"],"url":"https://github.com/fedora-python/lxml_html_clean/security/advisories/GHSA-hw26-mmpg-fqfg"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:56439d3e3bf2160b3dc407db80aea57166206e928e012ad094420290ae1e32ec · sha256:32de82142aef4add… · /containers/adp/0/references/0

{"name":"https://github.com/fedora-python/lxml_html_clean/security/advisories/GHSA-hw26-mmpg-fqfg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/fedora-python/lxml_html_clean/security/advisories/GHSA-hw26-mmpg-fqfg"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:56439d3e3bf2160b3dc407db80aea57166206e928e012ad094420290ae1e32ec · sha256:32de82142aef4add… · /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.

← Back to CVE Explorer