CVE-2023-34448

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 4.5% (91st percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 4.5%CVSS: 8.8Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Grav is a flat-file content management system. Prior to version 1.7.42, the patch for CVE-2022-2073, a server-side template injection vulnerability in Grav leveraging the default filter() function, did not block other built-in functions exposed by Twig's Core Extension that could be used to invoke arbitrary unsafe functions, thereby allowing for remote code execution. A patch in version 1.74.2 overrides the built-in Twig map() and reduce() filter functions in system/src/Grav/Common/Twig/Extension/GravExtension.php to validate the argument passed to the filter in $arrow.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
56
EG Risk 56/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
4.5%
EPSS %ILE
91st
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

June 14, 2023

Last Modified

November 21, 2024

Advisory Details (5)

Auto-updated Aug 28, 2026
Patch available. Sources: github, github_commit.
github_commit Patch Available

commit 9d6a2dba09fd (getgrav/grav)

Patch available: getgrav/grav 2.0.0-rc.6 (contains commit 9d6a2dba09fd)

https://www.github.com/getgrav/grav/commit/9d6a2dba09fd4e56f5cdfb9a399caea355bfeb83
generic

huntr - The world's first bug bounty platform for AI/ML

https://huntr.dev/bounties/3ef640e6-9e25-4ecb-8ec1-64311d63fe66/
generic

Twig/src/Environment.php at v1.44.7 · twigphp/Twig · GitHub

https://github.com/twigphp/Twig/blob/v1.44.7/src/Environment.php#L148
githubMentions a patch (unverified)

Grav Server-side Template Injection (SSTI) via Twig Default Filters · Advisory · getgrav/grav · GitHub

https://github.com/getgrav/grav/security/advisories/GHSA-whr7-m3f8-mpm8
github_commit Patch Available

commit 8c2c1cb72611 (getgrav/grav)

Patch available: getgrav/grav 2.0.0-rc.6 (contains commit 8c2c1cb72611)

https://github.com/getgrav/grav/commit/8c2c1cb72611a399f13423fc6d0e1d998c03e5c8

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFix by version rangeDependents
getgrav/grav0.8.0 ... 1.7.9 (269 versions)
  • every version up to 1.7.42: fixed in 1.7.42
—

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 23× 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.

Showing the most recent 100 of 178 total refreshes for this CVE.

  1. 2026-10-09 20:05 UTCEPSS rescore
  2. 2026-10-08 17:06 UTCEPSS rescore
  3. 2026-10-07 23:46 UTCEPSS rescore
  4. 2026-10-06 15:15 UTCEPSS rescore
  5. 2026-10-05 17:41 UTCEPSS rescore
  6. 2026-10-03 14:23 UTCEPSS rescore
  7. 2026-09-30 16:25 UTCEG score recompute
  8. 2026-09-30 15:01 UTCEPSS rescore
  9. 2026-09-29 15:16 UTCEPSS rescore
  10. 2026-09-28 13:49 UTCEPSS rescore
  11. 2026-09-27 13:42 UTCEPSS rescore
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  16. 2026-09-23 13:45 UTCEPSS rescore
  17. 2026-09-23 09:23 UTCOSV refresh
  18. 2026-09-22 14:45 UTCEPSS rescore
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  20. 2026-09-16 14:05 UTCEPSS rescore
  21. 2026-09-12 14:58 UTCEPSS rescore
  22. 2026-09-11 14:50 UTCEPSS rescore
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  24. 2026-09-08 21:57 UTCEPSS rescore
  25. 2026-09-07 15:59 UTCEPSS rescore
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  1. 2026-09-06 13:45 UTCEPSS rescore
  2. 2026-09-05 15:26 UTCEPSS rescore
  3. 2026-09-04 13:58 UTCEPSS rescore
  4. 2026-09-04 05:04 UTCEPSS rescore
  5. 2026-09-04 03:59 UTCOSV refresh
  6. 2026-09-02 14:09 UTCEPSS rescore
  7. 2026-09-01 13:51 UTCEPSS rescore
  8. 2026-08-30 19:15 UTCEPSS rescore
  9. 2026-08-30 01:20 UTCEPSS rescore
  10. 2026-08-28 21:38 UTCEPSS rescore
  11. 2026-08-27 14:23 UTCEPSS rescore
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  18. 2026-08-19 17:02 UTCEPSS rescore
  19. 2026-08-18 13:46 UTCEPSS rescore
  20. 2026-08-17 14:59 UTCOSV refresh
  21. 2026-08-17 13:45 UTCEPSS rescore
  22. 2026-08-16 14:54 UTCEPSS rescore
  23. 2026-08-16 02:12 UTCEPSS rescore
  24. 2026-08-15 01:28 UTCEPSS rescore
  25. 2026-08-13 21:58 UTCEPSS rescore
  26. 2026-08-12 13:48 UTCEPSS rescore
  27. 2026-08-11 13:39 UTCEPSS rescore
  28. 2026-08-09 13:44 UTCEPSS rescore
  29. 2026-08-08 16:34 UTCEPSS rescore
  30. 2026-08-07 16:24 UTCEPSS rescore
  31. 2026-08-06 13:44 UTCEPSS rescore
  32. 2026-08-05 19:15 UTCEPSS rescore
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  34. 2026-08-04 15:07 UTCEPSS rescore
  35. 2026-08-04 10:35 UTCEPSS rescore
  36. 2026-08-03 10:34 UTCEPSS rescore
  37. 2026-08-02 09:59 UTCOSV refresh
  38. 2026-08-02 02:25 UTCEPSS rescore
  39. 2026-08-01 04:13 UTCEPSS rescore
  40. 2026-07-30 16:26 UTCEPSS rescore
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  42. 2026-07-30 01:28 UTCEPSS rescore
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  44. 2026-07-28 15:34 UTCEPSS rescore
  45. 2026-07-27 14:10 UTCEPSS rescore
  46. 2026-07-25 14:16 UTCEPSS rescore
  47. 2026-07-24 14:16 UTCEPSS rescore
  48. 2026-07-23 14:16 UTCEPSS rescore
  49. 2026-07-23 14:16 UTCEPSS rescore
  50. 2026-07-23 02:23 UTCEG score recompute
  51. 2026-07-22 23:10 UTCEG score recompute
  52. 2026-07-22 14:06 UTCEPSS rescore
  53. 2026-07-21 15:23 UTCEPSS rescore
  54. 2026-07-21 15:23 UTCEPSS rescore
  55. 2026-07-20 17:06 UTCEPSS rescore
  56. 2026-07-19 14:29 UTCEPSS rescore
  57. 2026-07-19 14:29 UTCEPSS rescore
  58. 2026-07-19 02:27 UTCEPSS rescore
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  60. 2026-07-18 10:03 UTCEPSS rescore
  61. 2026-07-18 10:03 UTCEPSS rescore
  62. 2026-07-16 17:01 UTCEPSS rescore
  63. 2026-07-15 17:49 UTCOSV refresh
  64. 2026-07-15 16:56 UTCEPSS rescore
  65. 2026-07-15 16:56 UTCEPSS rescore
  66. 2026-07-15 01:58 UTCEPSS rescore
  67. 2026-07-15 01:58 UTCEPSS rescore
  68. 2026-07-13 22:28 UTCEPSS rescore
  69. 2026-07-13 22:28 UTCEPSS rescore
  70. 2026-07-13 06:11 UTCEPSS rescore
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  72. 2026-07-12 05:45 UTCEPSS rescore
  73. 2026-07-11 08:26 UTCEPSS rescore
  74. 2026-07-11 08:25 UTCEPSS rescore
  75. 2026-07-09 19:08 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2023-34448?
CVE-2023-34448 is a high vulnerability published on June 14, 2023. Grav is a flat-file content management system. Prior to version 1.7.42, the patch for CVE-2022-2073, a server-side template injection vulnerability in Grav leveraging the default filter() function, did not block other built-in functions exposed by Twig's Core Extension that could be used to invoke…
When was CVE-2023-34448 disclosed?
CVE-2023-34448 was first published on June 14, 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-2023-34448 actively exploited?
CVE-2023-34448 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4.5% probability of exploitation in the next 30 days (91st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-34448?
CVE-2023-34448 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2023-34448?
A fix for CVE-2023-34448 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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