CVE-2018-13784

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 17%CVSS: 9.1Exploit: Elevated riskExposed: 0

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

PrestaShop before 1.6.1.20 and 1.7.x before 1.7.3.4 mishandles cookie encryption in Cookie.php, Rinjdael.php, and Blowfish.php.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
61(Track*)
EG Risk 61/100SSVC: Track*

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
Severity91% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
17%
EPSS %ILE
97%
KEV
Not listed

Published

July 9, 2018

Last Modified

November 21, 2024

Advisory Details (5)

Auto-updated Jul 20, 2026
🔬 Proof of concept available. Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic🟡 PoC Available

PrestaShop < 1.6.1.19 - 'BlowFish ECD' Privilege Escalation - PHP webapps Exploit

https://www.exploit-db.com/exploits/45047/
generic🟡 PoC Available

PrestaShop < 1.6.1.19 - 'AES CBC' Privilege Escalation - PHP webapps Exploit

https://www.exploit-db.com/exploits/45046/
github_pr

Improve cookie encryption

Fix merged in PrestaShop/PrestaShop PR #9222 on 2018-06-27 — awaiting tagged release

https://github.com/PrestaShop/PrestaShop/pull/9222
github_pr

Improve cookie encryption

Fix merged in PrestaShop/PrestaShop PR #9218 on 2018-06-26 — awaiting tagged release

https://github.com/PrestaShop/PrestaShop/pull/9218
generic

https://build.prestashop-project.org/news/2018/prestashop-1-7-3-4-1-6-1-20-maintenance-releases/

http://build.prestashop.com/news/prestashop-1-7-3-4-1-6-1-20-maintenance-releases/

Data Freshness Timeline

(refreshed 7× in last 7d / 28× 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 112 total refreshes for this CVE.

  1. 2026-08-20 22:51 UTCEPSS rescore
  2. 2026-08-19 17:00 UTCEPSS rescore
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  1. 2026-07-23 14:15 UTCEPSS rescore
  2. 2026-07-23 01:33 UTCEG score recompute
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  6. 2026-07-21 09:17 UTCOSV refresh
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Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 GitHub PoC) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-45046
    First seen Jul 16, 2018

    PrestaShop < 1.6.1.19 - 'AES CBC' Privilege Escalation

    Open source ↗
  • Exploit-DBEDB-45047
    First seen Jul 16, 2018

    PrestaShop < 1.6.1.19 - 'BlowFish ECD' Privilege Escalation

    Open source ↗
  • GitHub PoCambionics/prestashop-exploits
    First seen Jul 16, 2018

    Collection of exploits/POC for PrestaShop cookie vulnerabilities (CVE-2018-13784)

    Open source ↗

Frequently asked(5)

What is CVE-2018-13784?
CVE-2018-13784 is a critical vulnerability published on July 9, 2018. PrestaShop before 1.6.1.20 and 1.7.x before 1.7.3.4 mishandles cookie encryption in Cookie.php, Rinjdael.php, and Blowfish.php.
When was CVE-2018-13784 disclosed?
CVE-2018-13784 was first published in the National Vulnerability Database on July 9, 2018, 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-2018-13784 actively exploited?
CVE-2018-13784 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 17% probability of exploitation in the next 30 days, which ranks it in the top 3.2% of all scored CVEs.
What is the CVSS score of CVE-2018-13784?
CVE-2018-13784 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2018-13784?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-13784, 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.

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