Trending
CVE-2026-58480

CVE detail

CVE-2026-58480

Blocksy Companion Pro plugin for WordPress before 2.1.47 contains an unauthenticated arbitrary file upload vulnerability that allows attackers to upload executable files by bypassing extension validation in the save_attachments function exposed through the Advanced Reviews feature. Attackers can exploit the Custom Fonts extension's flawed strpos() substring check by uploading double-extension filenames such as shell.woff2.php, causing the validation to pass on the substring match while the web server executes the file as PHP, achieving remote code execution.

CVSS 9.2 · CriticalBuzz score 43.11 public exploit repository references

Buzz score

Why this CVE is surfacing

Buzz score total 43.1

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 17.9 · diversity 20.0 · KEV 0.0 · OTX 0.0 · PoC 5.2

Mention score

17.9

5 evidence mentions in the snapshot

Diversity score

20.0

5 sources across 4 categories

KEV score

0.0

No KEV entry observed

OTX score

0.0

0 OTX pulses

PoC score

5.2

1 repos · best confidence 0.80

Best PoC traction

Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions: 1; within the 30d window
Peak daily: 1; highest bucket

Evidence

Source links by recency

Newest mentions first

5 source links · newest first

[webapps] Blocksy Companion 2.1.46 - RCEExploit-DB
Multiple Date: 2026-08-11 Vulnerable App: #!/usr/bin/env python3 # Exploit Title: Blocksy Companion 2.1.46 - RCE # CVE: CVE-2026-58480 # Date: 2026-07-13 # Exploit Author: Mohammed Idrees Banyamer # Author Country: Jordan # Instagram: @banyamer_security # Author GitHub: https://github.com/mbanyamer # Author Blog : https://banyamersecurity.com/blog/ # V
exploitwww.exploit-db.comAug 11, 2026, 12:00 AM
https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/blocksy-companion/blocksy-companion-2146-unauthenticated-arbitrary-file-upload-via-blc-review-images-parameterwww.wordfence.com
No excerpt available.
Patchwww.wordfence.comJul 8, 2026, 2:17 PM
https://www.vulncheck.com/advisories/blocksy-companion-pro-unauthenticated-file-upload-via-save-attachmentswww.vulncheck.com
No excerpt available.
Exploitwww.vulncheck.comJul 8, 2026, 2:17 PM
https://wordpress.org/plugins/blocksy-companion/wordpress.org
No excerpt available.
Release Noteswordpress.orgJul 8, 2026, 2:17 PM
https://patchstack.com/database/wordpress/plugin/blocksy-companion/vulnerability/wordpress-blocksy-companion-plugin-2-1-46-unauthenticated-arbitrary-file-upload-vulnerabilitypatchstack.com
No excerpt available.
Exploitpatchstack.comJul 8, 2026, 2:17 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

1 repository references · best confidence 0.80 · max 3 stars

shinthink/CVE-2026-58480Medium confidence
githubRepository topic discovery3 starsDiscovered Jul 26, 2026, 10:51 AM

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External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2026-58480.

Product-level CPE searches intentionally omit version fields and NVD version-range or configuration certainty. Verify the exact product version and configuration independently.

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Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

Product query unavailableNo valid raw CPE 2.3 product record is available for this CVE, so no product-level Shodan query is shown.

Exact CVE query

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Shodan's exact vuln: filter is separate from the product searches above and requires an eligible paid Shodan plan.

vuln:CVE-2026-58480Search this CVE on Shodan

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Metadata

Canonical fields

NVD status

Deferred

Published

Jul 8, 2026

Modified

Jul 8, 2026

Official record

Authoritative NVD record

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CWE IDs

Vendor classifications

Unavailable

How this vector reads

CVSS 4.0 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Network. The vulnerable system can be reached across network boundaries.
Attack Complexity (AC): Low. No special conditions beyond the attacker-controlled steps are required.
Attack Requirements (AT): Present. A prerequisite deployment or execution condition must be present.
Privileges Required (PR): None. The attacker needs no privileges on the vulnerable system.
User Interaction (UI): None. Exploitation does not require a targeted user to act.
Vulnerable System Confidentiality (VC): High. There is a total or serious impact to this security property.
Vulnerable System Integrity (VI): High. There is a total or serious impact to this security property.
Vulnerable System Availability (VA): High. There is a total or serious impact to this security property.
Subsequent System Confidentiality (SC): None. There is no direct impact to this security property.
Subsequent System Integrity (SI): None. There is no direct impact to this security property.
Subsequent System Availability (SA): None. There is no direct impact to this security property.

Optional CVSS v4 metrics remain in the raw vector; only base metrics are expanded here.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses