CVE-2026-49952

🗓️ 15 Jun 2026 18:43:21Reported by VulnCheckType

cve🔗 web.nvd.nist.gov👁 20 Views🌐 WEB

CVE-2026-49952 enables auth bypass in Discuz! X5.0 dbbak.php via a shared key, enabling database export and user impersonation.

Reporter	Title	Published	Views	Family All 7
GithubExploit	Exploit for CVE-2026-49952	17 Jun 202609:04	–	githubexploit
Circl	CVE-2026-49952	15 Jun 202620:20	–	circl
Cvelist	CVE-2026-49952 Discuz! X5.0 Authentication Bypass via dbbak.php Encryption Oracle	15 Jun 202618:43	–	cvelist
EUVD	EUVD-2026-36792	15 Jun 202621:30	–	euvd
NVD	CVE-2026-49952	15 Jun 202620:16	–	nvd
Positive Technologies	PT-2026-49307	15 Jun 202600:00	–	ptsecurity
Vulnrichment	CVE-2026-49952 Discuz! X5.0 Authentication Bypass via dbbak.php Encryption Oracle	15 Jun 202618:43	–	vulnrichment

Vulners

Node

discuz!discuz!_x5.0Range20260320–20260501

[
  {
    "defaultStatus": "affected",
    "vendor": "Discuz!",
    "product": "Discuz! X5.0",
    "repo": "https://gitee.com/Discuz/DiscuzX",
    "versions": [
      {
        "status": "affected",
        "version": "20260320",
        "versionType": "date",
        "lessThanOrEqual": "20260501"
      }
    ]
  }
]

Source	Link
vulncheck	www.vulncheck.com/advisories/discuz-x5-0-authentication-bypass-via-dbbak-php-encryption-oracle
gitee	www.gitee.com/Discuz/DiscuzX/commit/9962dad52c4c6999dabaf91ecd70377c680ff3c6
karmainsecurity	www.karmainsecurity.com/chaining-bugs-in-discuz-from-race-condition-to-rce
karmainsecurity	www.karmainsecurity.com/KIS-2026-09
seclists	www.seclists.org/fulldisclosure/2026/Jun/3

Parameter	Position	Path	Description	CWE
username	query param	discuz5/dbbak.php	Authentication bypass to access database backup API via crafted username parameter.	CWE-323

17 Jun 2026 10:55Current

5.6Medium risk

Vulners AI Score5.6

CVSS 3.19.1

CVSS 49.3

EPSS0.0046

SSVC

CWE-323