CVE-2023-39318

MEDIUMNVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

Score 6.1 from GitHub Security Advisory published 2023-09-08. NVD baseline CVSS 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.1
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 6.1Exploit: NoneExposed: 0

A fix is available — apply it.

The html/template package does not properly handle HTML-like "" comment tokens, nor hashbang "#!" comment tokens, in contexts. This may cause the template parser to improperly interpret the contents of contexts, causing actions to be improperly escaped. This may be leveraged to perform an XSS attack.

CVSS v3
6.1
EG Score
6.1(medium)
EPSS
52.8%
KEV
Not listed

Published

September 8, 2023

Last Modified

November 21, 2024

References (12)

Vendor Advisories for CVE-2023-39318(19)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(24)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntugolang-1.18-src (1.18.1-1ubuntu1.2) @ jammy2026-05-24ubuntu
ubuntugolang-1.21-src (1.21.1-1ubuntu0.23.10.1) @ mantic2026-05-24ubuntu
ubuntugolang-1.17-src (1.17.13-3ubuntu1.2) @ jammy2026-05-24ubuntu
redhatetcd-0:3.3.23-16.el8ost2024-05-29redhat
redhatcontainer-tools:rhel8-8100020240227110532.828888972024-05-22redhat
redhattoolbox-0:0.0.99.5-2.el92024-04-30redhat
redhatservice-interconnect/skupper-site-controller-rhel9:1.5.3-22024-04-18redhat
redhatodf4/cephcsi-rhel9:v4.15.0-372024-03-19redhat
redhatcontainer-tools:4.0-8090020231207142256.d7b6f4b72024-01-10redhat
redhatbuildah-1:1.31.3-2.el9_32023-12-12redhat
redhatskopeo-2:1.13.3-3.el9_32023-12-12redhat
redhatcontainernetworking-plugins-1:1.3.0-6.el9_32023-12-12redhat
redhatpodman-2:4.6.1-7.el9_32023-12-12redhat
redhatmigration-toolkit-virtualization/mtv-api-rhel9:2.5.3-112023-12-05redhat
redhatopenshift-clients-0:4.14.0-202311031050.p0.g9b1e0d2.assembly.stream.el82023-11-15redhat
redhatgo-toolset:rhel8-8090020231013032436.26eb71ac2023-11-14redhat
redhatgolang-0:1.20.10-1.el9_32023-11-07redhat
redhatopenshift-secondary-scheduler-operator/secondary-scheduler-operator-rhel8:v1.2-132023-11-01redhat
redhatmicroshift-0:4.14.0-202310261440.p0.g1586504.assembly.4.14.0.el92023-10-31redhat
redhatskopeo-2:1.11.2-10.1.rhaos4.14.el82023-10-31redhat
redhatrhmtc/openshift-velero-plugin-rhel8:v1.7.14-32023-10-30redhat
redhatrun-once-duration-override-operator/run-once-duration-override-rhel8:v1.0-302023-10-26redhat
redhatoadp/oadp-velero-rhel8:1.1.7-62023-10-25redhat
redhatnetwork-observability/network-observability-rhel9-operator:v1.4.0-512023-10-20redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
stdlib—1.21.1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(9)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 9× in last 7d / 47× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-11 08:26 UTCEPSS rescore
  2. 2026-07-11 08:26 UTCEPSS rescore
  3. 2026-07-09 19:08 UTCEPSS rescore
  4. 2026-07-08 15:13 UTCEPSS rescore
  5. 2026-07-07 13:44 UTCEPSS rescore
  6. 2026-07-06 16:26 UTCEPSS rescore
  7. 2026-07-06 16:26 UTCEPSS rescore
  8. 2026-07-06 02:22 UTCEPSS rescore
  9. 2026-07-05 02:29 UTCEPSS rescore
  10. 2026-07-04 06:29 UTCEPSS rescore
  11. 2026-07-01 15:05 UTCEPSS rescore
  12. 2026-06-30 23:21 UTCEPSS rescore
  13. 2026-06-30 23:21 UTCEPSS rescore
  14. 2026-06-29 14:05 UTCEPSS rescore
  15. 2026-06-28 14:06 UTCEPSS rescore
  16. 2026-06-28 14:06 UTCEPSS rescore
  17. 2026-06-28 04:55 UTCEPSS rescore
  18. 2026-06-28 04:55 UTCEPSS rescore
  19. 2026-06-27 10:34 UTCOSV refresh
  20. 2026-06-27 03:07 UTCEPSS rescore
  21. 2026-06-27 03:07 UTCEPSS rescore
  22. 2026-06-25 13:48 UTCEPSS rescore
  23. 2026-06-25 13:48 UTCEPSS rescore
  24. 2026-06-24 14:04 UTCEPSS rescore
  25. 2026-06-24 14:04 UTCEPSS rescore
Show 60 more
  1. 2026-06-23 21:31 UTCEPSS rescore
  2. 2026-06-23 21:31 UTCEPSS rescore
  3. 2026-06-22 14:24 UTCEPSS rescore
  4. 2026-06-22 14:24 UTCEPSS rescore
  5. 2026-06-21 14:55 UTCEPSS rescore
  6. 2026-06-21 14:55 UTCEPSS rescore
  7. 2026-06-21 01:58 UTCEPSS rescore
  8. 2026-06-21 01:58 UTCEPSS rescore
  9. 2026-06-19 19:24 UTCEPSS rescore
  10. 2026-06-19 19:24 UTCEPSS rescore
  11. 2026-06-18 17:51 UTCEPSS rescore
  12. 2026-06-17 17:51 UTCEPSS rescore
  13. 2026-06-17 17:51 UTCEPSS rescore
  14. 2026-06-16 17:51 UTCEPSS rescore
  15. 2026-06-16 17:51 UTCEPSS rescore
  16. 2026-06-15 17:47 UTCEPSS rescore
  17. 2026-06-15 17:47 UTCEPSS rescore
  18. 2026-06-14 23:16 UTCEPSS rescore
  19. 2026-06-13 22:59 UTCEPSS rescore
  20. 2026-06-13 22:59 UTCEPSS rescore
  21. 2026-06-12 23:10 UTCEPSS rescore
  22. 2026-06-12 23:10 UTCEPSS rescore
  23. 2026-06-11 13:59 UTCEPSS rescore
  24. 2026-06-11 13:59 UTCEPSS rescore
  25. 2026-06-10 22:17 UTCEPSS rescore
  26. 2026-06-10 13:21 UTCEPSS rescore
  27. 2026-06-09 21:17 UTCOSV refresh
  28. 2026-06-08 14:16 UTCEPSS rescore
  29. 2026-06-08 14:15 UTCEPSS rescore
  30. 2026-06-07 15:23 UTCEPSS rescore
  31. 2026-06-07 15:23 UTCEPSS rescore
  32. 2026-06-06 13:46 UTCEPSS rescore
  33. 2026-06-06 13:46 UTCEPSS rescore
  34. 2026-06-05 22:46 UTCEPSS rescore
  35. 2026-06-05 22:46 UTCEPSS rescore
  36. 2026-06-05 06:09 UTCEPSS rescore
  37. 2026-06-05 06:09 UTCEPSS rescore
  38. 2026-06-04 13:11 UTCEPSS rescore
  39. 2026-06-04 13:11 UTCEPSS rescore
  40. 2026-06-02 20:12 UTCEPSS rescore
  41. 2026-06-02 20:12 UTCEPSS rescore
  42. 2026-06-02 20:12 UTCEPSS rescore
  43. 2026-06-01 13:51 UTCEPSS rescore
  44. 2026-06-01 13:51 UTCEPSS rescore
  45. 2026-05-31 00:15 UTCEPSS rescore
  46. 2026-05-31 00:15 UTCEPSS rescore
  47. 2026-05-29 13:43 UTCEPSS rescore
  48. 2026-05-29 13:43 UTCEPSS rescore
  49. 2026-05-28 13:43 UTCEPSS rescore
  50. 2026-05-28 13:43 UTCEPSS rescore
  51. 2026-05-27 13:39 UTCEPSS rescore
  52. 2026-05-26 13:43 UTCEPSS rescore
  53. 2026-05-26 13:43 UTCEPSS rescore
  54. 2026-05-26 07:18 UTCEPSS rescore
  55. 2026-05-26 07:18 UTCEPSS rescore
  56. 2026-05-26 07:18 UTCEPSS rescore
  57. 2026-05-24 17:55 UTCEG score recompute
  58. 2026-05-24 17:55 UTCVendor advisory
  59. 2026-05-24 17:55 UTCGHSA enrichment
  60. 2026-05-24 16:52 UTCEPSS rescore

Frequently asked(5)

What is CVE-2023-39318?
CVE-2023-39318 is a medium vulnerability published on September 8, 2023. The html/template package does not properly handle HTML-like "" comment tokens, nor hashbang "#!" comment tokens, in <script> contexts. This may cause the template parser to improperly interpret the contents of <script> contexts, causing actions to be improperly escaped. This may be leveraged to…
When was CVE-2023-39318 disclosed?
CVE-2023-39318 was first published in the National Vulnerability Database on September 8, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-39318 actively exploited?
CVE-2023-39318 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 52.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-39318?
CVE-2023-39318 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2023-39318?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-39318, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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