The theme editor in Bolt before 2.2.5 does not check the file extension when renaming files, which allows remote authenticated users to execute arbitrary code by renaming a crafted file and then directly accessing it.
CVE-2015-7309
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 6.5 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:L/Au:S/C:P/I:P/A:P. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 38.6% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v2.0 (legacy)
- 6.5MEDIUMNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 6.5(low)
- EG Risk
- 60(Track)EG Risk 60/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity65% × 45%Exploitation65% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 39%
- EPSS %ILE
- 98%
- KEV
- Not listed
Published
September 22, 2015
Last Modified
May 6, 2026
References (12)
- cve@mitrehttp://blog.curesec.com/article/blog/Bolt-224-Code-Execution-44.html
- cve@mitrehttp://packetstormsecurity.com/files/133539/CMS-Bolt-2.2.4-File-Upload.html
- cve@mitrehttp://seclists.org/fulldisclosure/2015/Aug/66
- cve@mitrehttp://www.rapid7.com/db/modules/exploit/multi/http/bolt_file_upload
- cve@mitrehttps://bolt.cm/newsitem/bolt-2-2-5-released
- cve@mitrehttps://www.exploit-db.com/exploits/38196/
- af854a3a-2127-422b-91ae-364da2661108http://blog.curesec.com/article/blog/Bolt-224-Code-Execution-44.html
- af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/133539/CMS-Bolt-2.2.4-File-Upload.html
- af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2015/Aug/66
- af854a3a-2127-422b-91ae-364da2661108http://www.rapid7.com/db/modules/exploit/multi/http/bolt_file_upload
- af854a3a-2127-422b-91ae-364da2661108https://bolt.cm/newsitem/bolt-2-2-5-released
- af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/38196/
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 5× in last 7d / 24× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-20 22:50 UTCEPSS rescore
- 2026-08-19 16:59 UTCEPSS rescore
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- 2026-07-26 14:50 UTCEPSS rescore
- 2026-07-26 13:55 UTCEG score recompute▲ 6.50
- 2026-07-25 14:13 UTCEPSS rescore
- 2026-07-24 14:13 UTCEPSS rescore
- 2026-07-23 14:14 UTCEPSS rescore
- 2026-07-23 01:19 UTCEG score recompute▼ 1.40
- 2026-07-23 00:21 UTCEG score recompute▲ 1.40
- 2026-07-22 21:59 UTCEG score recompute
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- 2026-07-22 14:04 UTCEPSS rescore
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- 2026-05-24 16:43 UTCEPSS rescore
- 2026-05-22 23:30 UTCEG score recompute
- 2026-05-22 23:30 UTCVendor advisory
- 2026-05-22 23:30 UTCGHSA enrichment
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
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Publicly available exploits
(2 references)Working exploit code is in the public domain (1 Metasploit module) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-38196✓ verifiedFirst seen Sep 15, 2015
CMS Bolt - Arbitrary File Upload (Metasploit)
Open source ↗ - Metasploitexploit/multi/http/bolt_file_upload✓ verifiedFirst seen Aug 17, 2015
CMS Bolt File Upload Vulnerability
Open source ↗
Frequently asked(4)
What is CVE-2015-7309?
When was CVE-2015-7309 disclosed?
Is CVE-2015-7309 actively exploited?
How do I remediate CVE-2015-7309?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2015-7309
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