Multiple incomplete blacklist vulnerabilities in the avatar upload functionality in manageuser.php in Collabtive before 2.1 allow remote authenticated users to execute arbitrary code by uploading a file with a (1) .php3, (2) .php4, (3) .php5, or (4) .phtml extension.
Conclusion & alert: CVE-2015-0258 is rated High Exploit Risk (80.3/100): CVSS High severity, with high exploitation likelihood (EPSS 12.94%, 94th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-29 | 15.82% | 12.94% | -2.88% |
| 2 | 2026-05-26 | 12.94% | 15.82% | +2.88% |
| 3 | 2026-05-24 | — | 12.94% | — |
Full EPSS history (23 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | [email protected] |
| 6.5 | 2.0 | MEDIUM |
|
8.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
ubuntu
|
medium | CVE-2015-0258 medium priority: Ubuntu including 1 source packages (collabtive), 6 status rows across 6 suites (bionic, eoan, focal, trusty, upstream, xenial): DNE 4, needs-triage 1, released 1. | https://ubuntu.com/security/CVE-2015-0258 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| o-dyn | collabtive | < 2.1 | cpe:2.3:a:o-dyn:collabtive:*:*:*:*:*:*:*:* |
| debian | debian_linux | 8.0 | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* |
| URL | Tags |
|---|---|
| http://packetstormsecurity.com/files/133736/Collabtive-2.0-Shell-Upload.html | Exploit Third Party Advisory VDB Entry |
| https://github.com/philippK-de/Collabtive/commit/9ce6301583669d0a8ecb4d23fb56e34b68511335 | Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2020/02/msg00031.html | Mailing List Third Party Advisory |
| https://usn.ubuntu.com/4590-1/ | Third Party Advisory |