CVE-2026-42879

MEDIUMNVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory published 2026-05-07. NVD baseline CVSS 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
6.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

FacturaScripts is an open source accounting and invoicing software. In 2025.81 and earlier, an authenticated unrestricted file upload vulnerability exists in FacturaScripts' product image upload functionality. An attacker with valid credentials can upload a PHP file disguised as a GIF image (using a GIF89a header), bypassing MIME type validation. The file is stored with its original extension, including executable extensions such as .php. The vulnerability exists the addImageAction() method of Core/Lib/ExtendedController/ProductImagesTrait.php.

CVSS v3
6.3
EG Score
6.3(medium)
EPSS
13.7%
KEV
Not listed

Published

May 27, 2026

Last Modified

May 27, 2026

Advisory Details (1)

Auto-updated Jun 14, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Unrestricted File Upload Allows Executable Extension Bypass in Product Image Upload · Advisory · NeoRazorX/facturascripts · GitHub

https://github.com/NeoRazorX/facturascripts/security/advisories/GHSA-vf3q-frmr-vrr9

Vendor Advisories for CVE-2026-42879(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
composerfacturascripts/facturascripts—ghsa

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)
Packagist(1)
PackageVulnerable rangeFixed inDependents
facturascripts/facturascripts2018.03 ... v2025.81 (57 versions)——

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 57× 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 117 total refreshes for this CVE.

  1. 2026-07-15 16:57 UTCEPSS rescore
  2. 2026-07-15 02:00 UTCEPSS rescore
  3. 2026-07-13 22:30 UTCEPSS rescore
  4. 2026-07-13 06:13 UTCEPSS rescore
  5. 2026-07-12 05:46 UTCEPSS rescore
  6. 2026-07-11 22:59 UTCEG score recompute
  7. 2026-07-11 22:59 UTCGHSA enrichment
  8. 2026-07-11 08:27 UTCEPSS rescore
  9. 2026-07-09 19:10 UTCEPSS rescore
  10. 2026-07-08 23:33 UTCEG score recompute
  11. 2026-07-08 23:33 UTCGHSA enrichment
  12. 2026-07-08 15:16 UTCEPSS rescore
  13. 2026-07-07 13:46 UTCEPSS rescore
  14. 2026-07-06 16:27 UTCEPSS rescore
  15. 2026-07-06 16:27 UTCEPSS rescore
  16. 2026-07-06 02:23 UTCEPSS rescore
  17. 2026-07-06 02:23 UTCEPSS rescore
  18. 2026-07-05 02:30 UTCEPSS rescore
  19. 2026-07-04 06:31 UTCEPSS rescore
  20. 2026-07-02 23:50 UTCEG score recompute
  21. 2026-07-02 23:50 UTCGHSA enrichment
  22. 2026-07-01 15:06 UTCEPSS rescore
  23. 2026-07-01 09:17 UTCEG score recompute
  24. 2026-07-01 09:17 UTCGHSA enrichment
  25. 2026-06-30 23:22 UTCEPSS rescore
Show 75 more
  1. 2026-06-29 14:06 UTCEPSS rescore
  2. 2026-06-29 13:59 UTCEG score recompute
  3. 2026-06-29 13:59 UTCGHSA enrichment
  4. 2026-06-28 14:07 UTCEPSS rescore
  5. 2026-06-28 07:39 UTCEG score recompute
  6. 2026-06-28 07:39 UTCGHSA enrichment
  7. 2026-06-28 04:56 UTCEPSS rescore
  8. 2026-06-27 05:37 UTCEG score recompute
  9. 2026-06-27 05:37 UTCGHSA enrichment
  10. 2026-06-27 03:08 UTCEPSS rescore
  11. 2026-06-26 02:14 UTCEG score recompute
  12. 2026-06-26 02:14 UTCGHSA enrichment
  13. 2026-06-25 13:49 UTCEPSS rescore
  14. 2026-06-25 13:49 UTCEPSS rescore
  15. 2026-06-24 23:51 UTCEG score recompute
  16. 2026-06-24 23:51 UTCGHSA enrichment
  17. 2026-06-24 14:05 UTCEPSS rescore
  18. 2026-06-23 21:33 UTCEPSS rescore
  19. 2026-06-22 14:25 UTCEPSS rescore
  20. 2026-06-22 14:25 UTCEPSS rescore
  21. 2026-06-21 14:56 UTCEPSS rescore
  22. 2026-06-21 14:56 UTCEPSS rescore
  23. 2026-06-21 01:59 UTCEPSS rescore
  24. 2026-06-19 19:25 UTCEPSS rescore
  25. 2026-06-18 17:52 UTCEPSS rescore
  26. 2026-06-18 17:52 UTCEPSS rescore
  27. 2026-06-17 17:53 UTCEPSS rescore
  28. 2026-06-17 11:53 UTCEG score recompute
  29. 2026-06-17 11:52 UTCGHSA enrichment
  30. 2026-06-16 17:52 UTCEPSS rescore
  31. 2026-06-16 09:51 UTCEG score recompute
  32. 2026-06-16 09:50 UTCGHSA enrichment
  33. 2026-06-15 17:49 UTCEPSS rescore
  34. 2026-06-15 07:48 UTCEG score recompute
  35. 2026-06-15 07:48 UTCGHSA enrichment
  36. 2026-06-14 05:15 UTCEG score recompute
  37. 2026-06-14 05:15 UTCGHSA enrichment
  38. 2026-06-13 23:00 UTCEPSS rescore
  39. 2026-06-13 03:07 UTCEG score recompute
  40. 2026-06-13 03:07 UTCGHSA enrichment
  41. 2026-06-12 23:12 UTCEPSS rescore
  42. 2026-06-12 23:12 UTCEPSS rescore
  43. 2026-06-12 01:05 UTCEG score recompute
  44. 2026-06-12 01:05 UTCGHSA enrichment
  45. 2026-06-11 14:00 UTCEPSS rescore
  46. 2026-06-10 23:03 UTCEG score recompute
  47. 2026-06-10 23:03 UTCGHSA enrichment
  48. 2026-06-10 22:18 UTCEPSS rescore
  49. 2026-06-10 13:22 UTCEPSS rescore
  50. 2026-06-10 13:22 UTCEPSS rescore
  51. 2026-06-09 21:00 UTCEG score recompute
  52. 2026-06-09 21:00 UTCGHSA enrichment
  53. 2026-06-08 18:48 UTCEG score recompute
  54. 2026-06-08 18:48 UTCGHSA enrichment
  55. 2026-06-08 14:17 UTCEPSS rescore
  56. 2026-06-08 14:17 UTCEPSS rescore
  57. 2026-06-07 15:25 UTCEPSS rescore
  58. 2026-06-07 15:25 UTCEPSS rescore
  59. 2026-06-07 13:36 UTCEG score recompute
  60. 2026-06-07 13:36 UTCGHSA enrichment
  61. 2026-06-06 13:47 UTCEPSS rescore
  62. 2026-06-06 13:47 UTCEPSS rescore
  63. 2026-06-06 11:33 UTCEG score recompute
  64. 2026-06-06 11:33 UTCGHSA enrichment
  65. 2026-06-05 22:47 UTCEPSS rescore
  66. 2026-06-05 09:32 UTCEG score recompute
  67. 2026-06-05 09:32 UTCGHSA enrichment
  68. 2026-06-05 06:10 UTCEPSS rescore
  69. 2026-06-05 06:10 UTCEPSS rescore
  70. 2026-06-04 13:12 UTCEPSS rescore
  71. 2026-06-04 13:12 UTCEPSS rescore
  72. 2026-06-04 07:29 UTCEG score recompute
  73. 2026-06-04 07:29 UTCGHSA enrichment
  74. 2026-06-03 05:27 UTCEG score recompute
  75. 2026-06-03 05:27 UTCGHSA enrichment

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-42879?
CVE-2026-42879 is a medium vulnerability published on May 27, 2026. FacturaScripts is an open source accounting and invoicing software. In 2025.81 and earlier, an authenticated unrestricted file upload vulnerability exists in FacturaScripts' product image upload functionality. An attacker with valid credentials can upload a PHP file disguised as a GIF image (using…
When was CVE-2026-42879 disclosed?
CVE-2026-42879 was first published in the National Vulnerability Database on May 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42879 actively exploited?
CVE-2026-42879 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-42879?
CVE-2026-42879 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-42879?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42879, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-42879

Explore →

Is Your Infrastructure Affected by CVE-2026-42879?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs