VULNpocalypse

CVE-2026-82664: yaojingang GEOFlow JSON-LD Theme HomeController.php cross site scripting

Advisory generated from the CVE record, CISA, Exploit Observer and VEDAS: what it is, whether it is exploited, who is affected, and how to fix and detect it.

Generated by VEDAS. Scores as of 2026-11-11 15:49 UTC. Rebuilt every few hours from cve-scores, CISA KEV and vedas-signatures. How this works and its limits.

What it is

A security vulnerability has been detected in yaojingang GEOFlow up to 2.1.0. This affects an unknown part of the file app/Http/Controllers/Site/HomeController.php of the component JSON-LD Theme Handler. The manipulation of the argument Search leads to cross site scripting. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 2.1.1 is able to mitigate this issue. The identifier of the patch is 67abfd864a15d169a78429f3290c91cb3b93e849. Upgrading the affected component is recommended.

Description quoted from the CVE record (assigned by VulDB, published 2026-08-31).

Weakness: Cross Site Scripting; Code Injection

How it can be exploited

Exploitable over the network with low attack complexity with no special attack requirements needing no privileges and a user must take an action. Impact: confidentiality none, integrity low, availability none. CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

CISA assessment (SSVC): CISA assesses that a public proof of concept exists. Automatable: no. Technical impact: partial.

Public exploit evidence (Exploit Observer)

Exploit Observer found 5 code repositories naming this CVE.

Code repositories that name a CVE are often scanners, copies or fakes, and some are malware. Read the code before running anything.

See all 8 references on Exploit Observer

Live scores

EPSS
0.006
low predicted chance of attack
VEDAS
0.987
strong exploit evidence
On CISA KEV
Not listed
Detection rule
Nuclei · Suricata

Who is affected

ProductAffectedNot affected
yaojingang GEOFlowversion 2.0
version 2.1.0		2.1.1 is not affected

Version ranges exactly as the CVE record states them. “Before X” means X is the first fixed version.

How to fix it

Vendor guidance:

How to detect it

Nuclei template (active check)

GEOFlow - Cross-Site Scripting

GEOFlow (yaojingang) reflects the unauthenticated `search` query parameter into the JSON-LD theme output. The vulnerable themes embed the search term inside a `<script type="application/ld+json">` block via `json_encode(..., JSON_UNESCAPED_SLASHES)` rendered with Blade’s raw `{!! !!}` directive, so a `</script>` sequence in the search term is emitted verbatim, closing the script element and allowing arbitrary HTML/JavaScript injection.

Name and description quoted from the template, written by VEDAS.

The template sends 1 request (GET /?search=%3C%2Fscript%3E%3Csvg%3EvedasINJ); it decides using status, word matchers. Severity in the template: medium. Marked as not yet verified against a live vulnerable target.

Run it against a host you own or are authorised to test:

bash
nuclei -u https://your-host -t CVE-2026-82664.yaml
Show the template (46 lines)
yaml
id: CVE-2026-82664

info:
  name: "GEOFlow - Cross-Site Scripting"
  author: vedas-arpsyndicate
  severity: medium
  description: |
    GEOFlow (yaojingang) reflects the unauthenticated `search` query parameter into the
    JSON-LD theme output. The vulnerable themes embed the search term inside a
    `<script type="application/ld+json">` block via `json_encode(..., JSON_UNESCAPED_SLASHES)`
    rendered with Blade's raw `{!! !!}` directive, so a `</script>` sequence in the search term
    is emitted verbatim, closing the script element and allowing arbitrary HTML/JavaScript
    injection.
  reference:
    - https://www.exploit.observer/?keyword=CVE-2026-82664&match=exact
    - https://subdomain.center/?engine=ammonites&keyword=geoflow&match=exact
  classification:
    cvss-metrics: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
    cvss-score: 5.3
    cve-id: CVE-2026-82664
    cwe-id: CWE-79
  metadata:
    verified: false
    max-request: 1
  tags: cve,cve2026,geoflow,xss

http:
  - method: GET
    path:
      - "{{BaseURL}}/?search=%3C%2Fscript%3E%3Csvg%3EvedasINJ"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "</script><svg>vedasINJ"

      - type: word
        part: header
        words:
          - "text/html"

      - type: status
        status:
          - 200

CVE-2026-82664.yaml on GitHub

Suricata rules (network detection)

1 rule that alert on traffic matching this exploit: VEDAS CVE-2026-82664 GEOFlow - Cross-Site Scripting via search JSON-LD breakout. Add them to your Suricata rule set and reload.

Show the rules
suricata
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"VEDAS CVE-2026-82664 GEOFlow - Cross-Site Scripting via search JSON-LD breakout"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"search="; nocase; fast_pattern; pcre:"/search=[^ &]*(\x3c\x2fscript\x3e|%3c%2fscript%3e|\x3csvg|%3csvg)/i"; classtype:web-application-attack; reference:cve,CVE-2026-82664; reference:url,https://www.exploit.observer/?keyword=CVE-2026-82664&match=exact; reference:url,https://subdomain.center/?engine=ammonites&keyword=geoflow&match=exact; sid:1075003; rev:1;)

CVE-2026-82664.rules on GitHub

References

Vendor advisories and patches

Exploit code

Technical analysis and advisories

Other references

Other databases

Where this comes from

This advisory is generated automatically by VEDAS from: CVE.org record, cve-scores (EPSS and VEDAS), Exploit Observer, vedas-signatures. Text in quotes is reproduced from the source; everything else is a fixed template filled with source fields. Nothing here is written by a language model. Check the vendor advisory before acting, and read how VEDAS and Exploit Observer work, and their limits.

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