CVE-2018-15681
CVE-2018-15681 is a critical-severity vulnerability in Btiteam Xbtit with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-732.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (51st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-732
- Affected product: Btiteam Xbtit
- Published:
- Last modified:
Description
An issue was discovered in BTITeam XBTIT 2.5.4. When a user logs in, their password hash is rehashed using a predictable salt and stored in the "pass" cookie, which is not flagged as HTTPOnly. Due to the weak and predictable salt that is in place, an attacker who successfully steals this cookie can efficiently brute-force it to retrieve the user's cleartext password.
Frequently asked questions
- What is CVE-2018-15681?
- An issue was discovered in BTITeam XBTIT 2.5.4. When a user logs in, their password hash is rehashed using a predictable salt and stored in the "pass" cookie, which is not flagged as HTTPOnly. Due to the weak and predictable salt that is in place, an attacker who successfully steals this cookie can efficiently brute-force it to retrieve the user's cleartext password.
- How severe is CVE-2018-15681?
- CVE-2018-15681 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-15681 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-15681?
- CVE-2018-15681 affects Btiteam Xbtit. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-15681?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2018-15681 published?
- CVE-2018-15681 was published on 2018-09-05 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:btiteam:xbtit:2.5.4:*:*:*:*:*:*:*
More vulnerabilities in Btiteam Xbtit
- CVE-2018-15680 — Critical (CVSS 9.8): An issue was discovered in BTITeam XBTIT 2.5.4. The hashed passwords stored in the xbtit_users table are stored as…
- CVE-2021-45821 — High (CVSS 8.8): A blind SQL injection vulnerability exists in Xbtit 3.1 via the sid parameter in ajaxchat/getHistoryChatData.php file…
- CVE-2018-15682 — High (CVSS 8.8): An issue was discovered in BTITeam XBTIT. Due to a lack of cross-site request forgery protection, it is possible to…
- CVE-2021-45822 — Medium (CVSS 6.1): A cross-site scripting vulnerability is present in Xbtit 3.1. The stored XSS vulnerability occurs because…
- CVE-2018-17870 — Medium (CVSS 6.1): An issue was discovered in BTITeam XBTIT 2.5.4. The "returnto" parameter of account_change.php is vulnerable to an open…
- CVE-2018-16361 — Medium (CVSS 6.1): An issue was discovered in BTITeam XBTIT 2.5.4. news.php allows XSS via the id parameter.
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