6.1

CVE-2023-39319: Improper handling of special tags within script contexts in html/template

Modified
AliasesUBUNTU-CVE-2023-39319DEBIAN-CVE-2023-39319CGA-2m79-f67j-m2g8
Published 08-09-2023Last modified 13-02-2025

Vulnerability summary

CVE-2023-39319 is a medium (CVSS 6.1) vulnerability in go standard library html/template. EPSS estimates a 0.91% chance of exploitation in the next 30 days, higher than 60.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.1, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.1/10
010
Medium · v3.1 (NVD)
EPSS score
0.91%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 24 · Related 14
OPENSUSE-SU-2023:0360-1OPENSUSE-SU-2024:13216-1OPENSUSE-SU-2024:13217-1RHBA-2023:6364RHBA-2023:6928RHSA-2023:5008

Timeline

  1. 08-09-2023
    PublishedVulnerability first disclosed.
  2. 13-02-2025
    Last modifiedVulnerability information updated.

Description

The html/template package does not apply the proper rules for handling occurrences of "<script", "<!--", and "</script" within JS literals in <script> contexts. This may cause the template parser to improperly consider script contexts to be terminated early, causing actions to be improperly escaped. This could be leveraged to perform an XSS attack.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.91%

Chance of exploitation in the next 30 days

Percentile

60%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.91% on 05-10-2026

05-10-202604-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard12 products
  • katib-earlystopping< 0.19.0-r31
  • katib-suggestion-goptuna-compat< 0.19.0-r40
  • katib-suggestion-hyperband< 0.19.0-r31
  • katib-suggestion-hyperopt< 0.19.0-r40 | < 0.19.0-r31
  • katib-suggestion-nas-darts< 0.19.0-r31
Wolfi12 products
  • katib-earlystopping< 0.19.0-r31
  • katib-suggestion-goptuna-compat< 0.19.0-r40
  • katib-suggestion-hyperband< 0.19.0-r31
  • katib-suggestion-hyperopt< 0.19.0-r40 | < 0.19.0-r31
  • katib-suggestion-nas-darts< 0.19.0-r31
Ubuntu10 products
  • golang-1.10All versions (No fix recorded)
  • golang-1.13All versions (No fix recorded)
  • golang-1.14All versions (No fix recorded)
  • golang-1.16All versions (No fix recorded)
  • golang-1.17< 1.17.13-3ubuntu1.2
Alpine1 product
  • go≥ 1.21.0, < 1.20.8-r0 | ≥ 1.21.0, < 1.21.1-r0
Debian1 product
  • golang-1.19All versions (No fix recorded)
Go1 product
  • stdlib≥ 1.21.0-0, < 1.21.1
Go standard library1 product
Golang1 product
  • go< 1.20.8 | ≥ 1.21.0, < 1.21.1

8 vendors · 39 products

References

17 links
Show all 17 references