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Adobe Commerce and Magento Improper Input Validation Vulnerability

Exploited · KEV 2025-10-24Metasploit moduleCVE-2025-54236CWE-20

Exploited since 2025-10-24. 2 of 8 rule sources name it; Cloudflare blocks by default. Our CRS test: not blocked.

Edge rules
2/8
Our test
Not blocked
CVSS
9.1
EPSS
95.4% Top 0.1%
Posts, 14d
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Published
2025-09-09
Adobe Commerce versions 2.4.9-alpha2, 2.4.8-p2, 2.4.7-p7, 2.4.6-p12, 2.4.5-p14, 2.4.4-p15 and earlier are affected by an Improper Input Validation vulnerability. A successful attacker can abuse this to achieve session takeover, increasing… More

Adobe Commerce versions 2.4.9-alpha2, 2.4.8-p2, 2.4.7-p7, 2.4.6-p12, 2.4.5-p14, 2.4.4-p15 and earlier are affected by an Improper Input Validation vulnerability. A successful attacker can abuse this to achieve session takeover, increasing the confidentiality, and integrity impact to high. Exploitation of this issue does not require user interaction.

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Ask about CVE-2025-54236: who's covered, what to patch first, how vendors compare. I cite sources and won't help with attacks.

Workers AI (Llama 3.3). Can be wrong: check the cited source.

Severity, decoded

CVSS 3.1
Critical · 9.1 / 10

Exploitable over the network, with no privileges and no user interaction, leading to full loss of confidentiality and integrity.

Over the internetNo login neededNo user actionWorks reliablySerious impact
How the score is built8 metrics
  • Attack vectorAn attacker can reach it over the internet; no access to your network needed.
    Network
  • Attack complexityNo special conditions are needed; the attack works reliably.
    Low
  • Privileges requiredNo account or login is needed.
    None
  • User interactionNo one has to click or open anything; the attack works on its own.
    None
  • ScopeThe damage stays within the vulnerable component.
    Unchanged
  • Confidentiality impactAn attacker can read all data the affected component holds, or the most sensitive parts of it.
    High
  • Integrity impactAn attacker can change any data or files the affected component protects.
    High
  • Availability impactThe component keeps working normally.
    None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA's assessmentSSVC, from the CVE record
ExploitationActive

Attackers are exploiting this in the wild.

AutomatableYes

Attackers can script the attack end to end and hit many targets at once.

Technical impactTotal

A successful attack gives full control over the affected software or all of its data.

Public exploits

2 found
1 Metasploit0 Exploit-DB1 Scanner template0 GitHub PoCs

Links are to third-party code: never run it outside an isolated lab.

Timeline

  1. 2025-09-09
    CVE published
    CVE List
  2. 2025-09-22
    Cloudflare ships a rule
    Adobe Commerce - Remote Code Execution - CVE:CVE-2025-54236
  3. 2025-10-22
    Metasploit module published
    Magento SessionReaper
  4. 2025-10-24
    Added to CISA KEV
    Confirmed exploitation in the wild
  5. 2025-12-03
    F5 ships a rule
    Magento RCE
  6. 2026-11-02
    Our test: OWASP Core Rule Set let it through
    paranoia level 1, anomaly threshold 5, default CRS settings
  7. 2026-11-02
    Our test: OWASP Core Rule Set let it through
    paranoia level 2, anomaly threshold 5, default CRS settings

Social

2026-10-20: 0 posts2026-10-21: 0 posts2026-10-22: 0 posts2026-10-23: 0 posts2026-10-24: 0 posts2026-10-25: 0 posts2026-10-26: 0 posts2026-10-27: 0 posts2026-10-28: 0 posts2026-10-29: 0 posts2026-10-30: 0 posts2026-10-31: 0 posts2026-11-01: 0 posts2026-11-02: 0 posts

No posts seen yet on X, Bluesky, Mastodon, Hacker News or GitHub.

Vendor statements

Quoted
CloudflareWAF Managed Rules3 quotesBlocks by default

First rule 2025-09-22, 13 days after the CVE was published.

2025-09-22New rule…983ff2ddDefault: BlockSource
Adobe Commerce - Remote Code Execution - CVE:CVE-2025-54236. Previous action: Log. New action: Block. This is a New Detection
2025-10-23New rule…c6ef59a1Default: BlockSource
Adobe Commerce - Remote Code Execution - CVE:CVE-2025-54236. Previous action: N/A. New action: Block. This is a New Detection
2025-11-03Updated…cb6d5fe5Default: BlockSource
Adobe Commerce - Remote Code Execution - CVE:CVE-2025-54236. Previous action: Log. New action: Block. This is an improved detection.
AWSAWS WAF Managed RulesNo public claim

We found no public statement from this vendor naming this CVE. That is not proof of no protection: generic rules may still catch it. AWS often describes a vulnerability without naming its CVE (for example "Log4j"). We count only entries that name the CVE, so AWS coverage is understated.

Microsoft AzureFront Door and Application Gateway WAF (DRS)No public claim

We found no public statement from this vendor naming this CVE. That is not proof of no protection: generic rules may still catch it. The rule tables name CVEs but carry no dates, so Azure is left out of every time-to-rule figure.

Google CloudCloud Armor preconfigured WAF rulesNo public claim

We found no public statement from this vendor naming this CVE. That is not proof of no protection: generic rules may still catch it. Google names few CVEs: the release notes start in May 2024 and the rules reference lists CVEs without dates. Its cve-canary rules are opt-in.

FastlyNext-Gen WAF virtual patchesBefore feed history

The CVE predates the oldest entry in this vendor's public feed, so a rule may exist that we cannot see.

F5Attack signatures (Distributed Cloud WAF)1 quoteRule published

First rule 2025-12-03, 85 days after the CVE was published.

2025-12-03New rule200204046Source
Added: signature 200204046 "Magento RCE" (Server Side Code Injection, risk High), systems: PHP. References: CVE-2025-54236.
AkamaiApp & API Protector (Adaptive Security Engine)No public source

This vendor publishes no machine-readable rule changelog we can check.

OWASP CRSCore Rule Set (open source, used inside many WAFs)No public claim

We found no public statement from this vendor naming this CVE. That is not proof of no protection: generic rules may still catch it. CRS rarely names CVEs: it relies on generic detections. Our own lab measures what it actually blocks.