CVE-2026-54159

CRITICALPre-NVD 10.010.0
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This critical-severity CVE scores 10.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.8% (53rd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
10.0EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.8%CVSS: 10.0Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

PrestaShop ps_facetedsearch is a module that adds layered navigation filters. From 3.0.0 until 4.0.4, the ps_facetedsearch module rebuilds selected search filters from the request URL, and the value of a slider filter, price or weight, is taken from the URL without sufficient validation and stored in an internal filter-block cache where it is serialized and later read back with a raw native unserialize() in src/Filters/Block.php. By crafting that value, an unauthenticated attacker can smuggle a malicious serialized PHP object into the cache, and when it is deserialized, a gadget chain writes an arbitrary PHP file inside the modules/ps_facetedsearch/ directory, which is then used as a webshell to run commands on the server. This issue is fixed in version 4.0.4.

CVSS v3
10.0
EG Score
10.0CRITICALmedium confidence
EG Risk
60
EG Risk 60/100

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 (value × EchelonGraph’s weight)
Severity100% × 45%
The EG Score, 10.0 of 10.
Exploitation0.8% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
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
0.8%
EPSS %ILE
53rd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

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

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 10, 2026

Last Modified

July 23, 2026

Advisory Details (3)

Auto-updated Oct 9, 2026
Patch available. Sources: github_release, github, github_commit.
GitHub advisoryMentions a patch (unverified)

PHP Object Injection in faceted search cache allows unauthenticated RCE · Advisory · PrestaShop/ps_facetedsearch · GitHub

https://github.com/PrestaShop/ps_facetedsearch/security/advisories/GHSA-m5f5-28qr-9g9r
GitHub release Patch Available

v4.0.4

Patch available: PrestaShop/ps_facetedsearch v4.0.4

https://github.com/PrestaShop/ps_facetedsearch/releases/tag/v4.0.4
GitHub commit Patch Available

commit 9ca839fac68a (PrestaShop/ps_facetedsearch)

Patch available: PrestaShop/ps_facetedsearch v4.0.4 (contains commit 9ca839fac68a)

https://github.com/PrestaShop/ps_facetedsearch/commit/9ca839fac68a60641d8187a3ff9730ab09af33cb

Vendor Advisories for CVE-2026-54159(1)

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

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFix by version rangeDependents
prestashop/ps_facetedsearchv3.0.0 ... v4.0.3 (38 versions)
  • 3.0.0 up to 4.0.4: fixed in 4.0.4
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 36× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 133 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 33 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 09:21 UTCEG score recompute
  2. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  3. 2026-10-13 06:45 UTCEG score recompute
  4. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  5. 2026-10-12 15:56 UTCEG score recompute
  6. 2026-10-11 19:40 UTCEG score recompute
  7. 2026-10-11 16:55 UTCEG score recompute
  8. 2026-10-11 14:18 UTCEG score recompute
  9. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  12. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  13. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  14. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  15. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  16. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  17. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  18. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  19. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  20. 2026-10-01 14:57 UTCEG score recompute
  21. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  22. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  23. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  24. 2026-09-28 09:46 UTCEG score recompute
  25. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
Show 75 more
  1. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  2. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  3. 2026-09-24 11:09 UTCEG score recompute
  4. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  5. 2026-09-23 05:44 UTCEG score recompute
  6. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  7. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  8. 2026-09-18 05:17 UTCEG score recompute
  9. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  10. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  11. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  12. 2026-09-13 23:38 UTCEG score recompute
  13. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  14. 2026-09-13 08:10 UTCEG score recompute
  15. 2026-09-12 02:45 UTCEG score recompute
  16. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  17. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  18. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  19. 2026-09-08 02:45 UTCEG score recompute
  20. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  21. 2026-09-06 13:56 UTCEG score recompute
  22. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  23. 2026-09-05 21:40 UTCEG score recompute
  24. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  25. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  26. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  27. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  28. 2026-08-30 20:13 UTCEG score recompute
  29. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  30. 2026-08-30 06:12 UTCEG score recompute
  31. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.8% · 51st percentile
  32. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.8% · 51st percentile
  33. 2026-08-27 21:40 UTCEG score recompute
  34. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  35. 2026-08-27 00:45 UTCEG score recompute
  36. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  37. 2026-08-25 14:46 UTCEG score recompute
  38. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  39. 2026-08-24 20:13 UTCEG score recompute
  40. 2026-08-24 13:05 UTCEG score recompute
  41. 2026-08-23 01:52 UTCEG score recompute
  42. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  43. 2026-08-22 03:31 UTCEG score recompute
  44. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  45. 2026-08-20 23:37 UTCEG score recompute
  46. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  47. 2026-08-20 01:32 UTCEG score recompute
  48. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  49. 2026-08-18 20:32 UTCEG score recompute
  50. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  51. 2026-08-17 14:41 UTCEG score recompute
  52. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  53. 2026-08-16 16:42 UTCEG score recompute
  54. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  55. 2026-08-16 05:42 UTCEG score recompute
  56. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  57. 2026-08-15 03:39 UTCEG score recompute
  58. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  59. 2026-08-13 22:09 UTCEG score recompute
  60. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  61. 2026-08-12 16:46 UTCEG score recompute
  62. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  63. 2026-08-11 14:46 UTCEG score recompute
  64. 2026-08-11 00:07 UTCEG score recompute
  65. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  66. 2026-08-09 15:00 UTCEG score recompute
  67. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  68. 2026-08-08 17:01 UTCEG score recompute
  69. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  70. 2026-08-07 19:03 UTCEG score recompute
  71. 2026-08-06 17:24 UTCEG score recompute
  72. 2026-08-06 13:47 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  73. 2026-08-05 19:23 UTCEG score recompute
  74. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  75. 2026-08-04 17:12 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-54159?
CVE-2026-54159 is a critical-severity vulnerability; its CVE record was published on July 10, 2026. PrestaShop psfacetedsearch is a module that adds layered navigation filters. From 3.0.0 until 4.0.4, the psfacetedsearch module rebuilds selected search filters from the request URL, and the value of a slider filter, price or weight, is taken from the URL without sufficient validation and stored in…
When was the CVE record for CVE-2026-54159 published?
The CVE record for CVE-2026-54159 was published on July 10, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 23, 2026; the record at its source may have been updated since.
Is CVE-2026-54159 actively exploited?
CVE-2026-54159 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.8% probability of exploitation in the next 30 days (53rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-54159?
CVE-2026-54159 has a CVSS base score of 10.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-54159?
A fix for CVE-2026-54159 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-54159 are linked in the Vendor Advisories panel on this page.

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