How severe is CVE-2021-45822?

CVE-2021-45822 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-45822 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45822?

CVE-2021-45822 affects Btiteam Xbtit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-45822?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-45822 published?

CVE-2021-45822 was published on 2022-03-16 and last updated on 2026-06-17.

CVE-2021-45822

CVE-2021-45822 is a medium-severity vulnerability in Btiteam Xbtit with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Btiteam Xbtit
Published: 2022-03-16
Last modified: 2026-06-17

Description

A cross-site scripting vulnerability is present in Xbtit 3.1. The stored XSS vulnerability occurs because /ajaxchat/sendChatData.php does not properly validate the value of the "n" (POST) parameter. Through this vulnerability, an attacker is capable to execute malicious JavaScript code.

Frequently asked questions

What is CVE-2021-45822?: A cross-site scripting vulnerability is present in Xbtit 3.1. The stored XSS vulnerability occurs because /ajaxchat/sendChatData.php does not properly validate the value of the "n" (POST) parameter. Through this vulnerability, an attacker is capable to execute malicious JavaScript code.
How severe is CVE-2021-45822?: CVE-2021-45822 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-45822 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45822?: CVE-2021-45822 affects Btiteam Xbtit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-45822?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-45822 published?: CVE-2021-45822 was published on 2022-03-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:btiteam:xbtit:3.1:*:*:*:*:*:*:*

More vulnerabilities in Btiteam Xbtit

CVE-2018-15681 — Critical (CVSS 9.8): An issue was discovered in BTITeam XBTIT 2.5.4. When a user logs in, their password hash is rehashed using a…
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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…
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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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