ZDF
Sign inSign up

Vulnerabilities

Security fix · CVE-2020-27783

[IMP] package: update lxml version Update the version to benefit from the fix for https://github.com/advisories/GHSA-pgww-xf46-h92r https://nvd.nist.gov/vuln/detail/CV…

Published Unknown date · Odoo Odoo

Check if you run it

No confirmed exploitation is on record for CVE-2020-27783. EPSS is 3.98%. Act only if a listed version of Odoo Odoo is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
3.98%
Remediation
Fix linked
Affected products
Odoo Odoo

[IMP] package: update lxml version Update the version to benefit from the fix for https://github.com/advisories/GHSA-pgww-xf46-h92r https://nvd.nist.gov/vuln/detail/CVE-2020-27783 This vulnerability is reproducible in Odoo with html_sanitize(..., sanitize_tags=False) which does NOT happen for user-facing content. Remove old compatibility check (lxml 3.1 was released in 2013) and cleanup global variables only used once closes odoo/odoo#64248

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2020-27783

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2020-27783. EPSS is 3.98%. Act only if a listed version of Odoo Odoo is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 3.98%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Odoo security

Code

The project this record applies to. Exploit listings stay in References.

Related records

Linked stories and findings that share CVE identifiers or explicit correlation edges.

Related Odoo Git fixes

Quoted Community commit messages that cite this CVE. Presence of a commit is not proof that every edition or backport includes the fix. Enterprise proprietary diffs are never shown here. Timeline

  • Jan 8, 2021 · referenced

    [IMP] package: update lxml version

    [IMP] package: update lxml version Update the version to benefit from the fix for https://github.com/advisories/GHSA-pgww-xf46-h92r https://nvd.nist.gov/vuln/detail/CVE-2020-27783 This vulnerability is reproducible in Odoo with html_sanitize(..., sanitize_tags=False) which does NOT happen for user-facing content. Remove old compatibility check (lxml 3.1 was released in 2013) and cleanup global variables only used once closes odoo/odoo#64248
    https://github.com/odoo/odoo/commit/aa07f93ef7fd99d0a5aedcdef7dfd9c739edd87f

Timeline

Detection, updates, and resolution for this record.

  1. Oct 21, 2026 · Odoo Community Git

    Detected

    [IMP] package: update lxml version Update the version to benefit from the fix for https://github.com/advisories/GHSA-pgww-xf46-h92r https://nvd.nist.gov/vuln/detail/CVE-2020-27783 This vulnerability is reproducible in Odoo with html_sanitize(..., sanitize_tags=False) which does NOT happen for user-facing content. Remove old compatibility check (lxml 3.1 was released in 2013) and cleanup global var

Sources

  • CVE.orgVulnerability recordCVE-2020-27783

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2020-27783

    30-day exploitation probability 3.98%

    first.org
  • Odoo Community GitGit security fix referenceCVE-2020-27783

    [IMP] package: update lxml version Update the version to benefit from the fix for https://github.com/advisories/GHSA-pgww-xf46-h92r https://nvd.nist.gov/vuln/detail/CVE-2020-27783 This vulnerability is reproducible in Odoo with html_sanitize(..., sanitize_tags=False) which does N

    github.com

References

Freshness

Last verified in this catalog Oct 21, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.