VulnSocial

CVE-2026-8337Disclosure(concretecms / concrete_cms)

LOWCVSS 5.3 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Concrete CMS 9.5.0 and below is vulnerable to IDOR in surveys. To be vulnerable, a site would have to be configured in such a way that both public and private surveys are present on the site. An unauthenticated attacker can vote in the restricted survey by submitting the restricted optionID through the public survey’s endpoint. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 6.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks  Zer0daySec https://github.com/Zee99y  for reporting

concretecms CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-565CWE-639

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • concrete_cms

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Affected systems

Vendors
concretecms
Products
concrete_cms

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-05-22: 2Technical Details · 2026-05-22: 205-22
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-8337 Concrete CMS 9.5.0 and below is vulnerable to IDOR in surveys. To be vulnerable, a site would have to be configured in such a way that both public and private surveys a… https://www.cve.org/CVERecord?id=CVE-2026-8337 ----- Traducción: CVE-2026-8337 Con… http://infoflow.cloud`

    Post summary

    A disclosure of CVE-2026-8337 notes an IDOR flaw in Concrete CMS surveys, with no PoC, exploit, patch or active‑use information provided.

    0000041
    79 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-8337 Concrete CMS 9.5.0 and below is vulnerable to IDOR in surveys. To be vulnerable, a site would have to be configured in such a way that both public and private surveys a… https://www.cve.org/CVERecord?id=CVE-2026-8337

    Post summary

    The statement discloses an IDOR vulnerability (CVE-2026-8337) affecting Concrete CMS 9.5.0 and below, describing how the flaw can be triggered by certain site configurations.

    00000280
    57.5K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appconcretecmsconcrete_cms---

Explore more

Back to dashboardconcretecms CVEsconcrete_cms vulnerabilities