CVE-2021-22948: revive-adserver revive_adserver Cross-site Scripting
Vulnerability summary
CVE-2021-22948 is a high (CVSS 7.1) Cross-site Scripting vulnerability in revive-adserver revive_adserver. EPSS estimates a 2.71% chance of exploitation in the next 30 days, higher than 85.8% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 23-09-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Vulnerability in the generation of session IDs in revive-adserver < 5.3.0, based on the cryptographically insecure uniqid() PHP function. Under some circumstances, an attacker could theoretically be able to brute force session IDs in order to take over a specific account.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
2.71%
Chance of exploitation in the next 30 days
Percentile
86%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.71% on 22-09-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (hackerone.com)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
- CWE-338Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong.
Affected systems
Revive-adserver1 product
- revive_adserver< 5.3.0 | 5.3.0:rc1
1 vendor · 1 product