Improper handling of empty HTML attributes in html/template (Go standard library html/template)

CVE-2023-29400
HIGH 7.3

At a glance

Source
NVD
EPSS
EPSS 1.04 % · percentile 64 ()
State
PUBLISHED
Published
Updated
Assigner
Go
NVD status
Modified

Description

Templates containing actions in unquoted HTML attributes (e.g. "attr={{.}}") executed with empty input can result in output with unexpected results when parsed due to HTML normalization rules. This may allow injection of arbitrary attributes into tags.

Weaknesses (CWE)

  • CWE-94 — Improper Control of Generation of Code
  • CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LCISA-ADP
CVSS 3.1HIGH 7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LNVD · nvd@nist.gov (Primary)
CVSS 3.1HIGH 7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Advisories

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Go standard library · html/templateaffected 0 < 1.19.9 ; affected 1.20.0-0 < 1.20.4

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD