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Medium severity6.1NVD Advisory· Published Aug 18, 2021· Updated Jun 17, 2026

CVE-2021-39286

CVE-2021-39286

Description

Webrecorder pywb before 2.6.0 allows XSS because it does not ensure that Jinja2 templates are autoescaped.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
pywbPyPI	< 2.6.0	2.6.0

Affected products

3

Webrecorder/pywb2 versions
cpe:2.3:a:webrecorder:pywb:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:webrecorder:pywb:*:*:*:*:*:*:*:*range: <2.6.0
- (no CPE)
ghsa-coords
pkg:pypi/pywb
Range: < 2.6.0

Patches

Vulnerability mechanics

References

5

github.com/webrecorder/pywb/commit/f7bd84cdacdd665ff73ae8d09a202f60be2ebae9nvdPatchThird Party AdvisoryWEB
github.com/advisories/GHSA-947x-pv47-pp3qghsaADVISORY
github.com/webrecorder/pywb/compare/v-2.5.0...v-2.6.0nvdRelease NotesThird Party AdvisoryWEB
nvd.nist.gov/vuln/detail/CVE-2021-39286ghsaADVISORY
github.com/pypa/advisory-database/tree/main/vulns/pywb/PYSEC-2021-120.yamlghsaWEB

News mentions

0

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